Protists | Biology


To purchase this program please visit www.greatpacificmedia.com Segment from the program Protists: The Origins of Eukaryotic Diversity. DVD Description Our Protist DVD explores the evolutionary history of eukaryotes while examining the incredible diversity that exists in kingdom Protista reflected in organisms such as Euglena which have both animal and plant-like qualities. The program then looks at animal-like zooflagellates, sarcodines, ciliates, and sporozoans; fungus-like slime molds, and plant-like dinoflagellates, diatoms, and englenoids. Multicellular red, brown and green algae are examined and why modern biology places all three in kingdom Protista rather than kingdom Plantae explained.


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Cell Membrane Passive Transport | Cell Biology


Segment from the program Cell Membranes: The Boundaries of Life. To purchase this program please visit www.greatpacificmedia.com


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Bacteria Shape | Biology | Bacteriology


To purchase this program please visit www.greatpacificmedia.com Segment from the program Bacteria, Archaebacteria, and the Prokaryotic Domains. DVD Description Our Bacteria DVD establishes the importance of bacteria by giving examples of symbiotic relationships with both plants and animals and discussing the endosymbiotic hypothesis and the bacterial origins of the mitochondria and chloroplasts found in eukaryotic cells. The program then looks in detail at both eubacteria and archaebacteria and some of the unique habitats such as hot springs in which they exist. The program concludes by examining some bacteria that act as human pathogens and others that are beneficial to humans.


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Bacteria | Biology | Bacteriology


To purchase this program please visit www.greatpacificmedia.com Segment from the program Bacteria, Archaebacteria, and the Prokaryotic Domains. DVD Description Our Bacteria DVD establishes the importance of bacteria by giving examples of symbiotic relationships with both plants and animals and discussing the endosymbiotic hypothesis and the bacterial origins of the mitochondria and chloroplasts found in eukaryotic cells. The program then looks in detail at both eubacteria and archaebacteria and some of the unique habitats such as hot springs in which they exist. The program concludes by examining some bacteria that act as human pathogens and others that are beneficial to humans.


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Aquatic Biomes Freshwater | Biology | Ecology


Purchase this DVD here www.greatpacificmedia.com Segment from the program: Aquatic Biomes: Oceans, Lakes, Rivers, and Wetlands. DVD Description Our Aquatic Biomes DVD begins by looking at the characteristics common to all aquatic environments. The program then examines the littoral, limnetic and profundal zones of freshwater lakes, the seasonal cycling of O2 and nutrients, and the difference between oligotrophic and eutrophic lakes before observing how life changes along the course of rivers and explaining the ecological importance of wetlands. The photic, aphotic, and benthic ocean zones are then described and marine habitats such as tide pools, kelp forests, coral reefs, and vent communities explored.


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Neuron Synapse


To purchase this program please visit www.greatpacificmedia.com Segment from the program The Nervous System: Neurons, Networks, and the Human Brain. Our Nervous System DVD begins by examining the structure and function of neurons; resting, action and post-synaptic potentials; and reflexes and neural networks. The peripheral, somatic, autonomic, sympathetic and parasympathetic nervous systems are introduced before looking at the central nervous system. After describing spinal cord structure and function the program then examines the human brain including the medula, pons, and cerebellum of the hindbrain; the recticular formation of the midbrain; and the thalamus, limbic system and cerebral cortex of the forebrain.


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Urinary System | Anatomy | Biology


To purchase this program please visit www.greatpacificmedia.com Segment from the program Digestion and Excretion: Absorption, Exretion, and Homeostasis. DVD Description Our Digestion DVD first examines the mechanical and chemical breakdown of food that occurs in the mouth and stomach before looking at digestion and absorption in the small intestine and the enzymes and other chemicals secreted by the liver, gall bladder, and pancreas that aid in the process. The program then looks at the synthesis of vitamins by bacteria in the large intestine and then goes on to explore the complex structures in the kidney that allow them to filter wastes out of the blood while returning water and nutrients.


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Invertebrates Insects | Biology


To purchase this program please visit www.greatpacificmedia.com Segment from the program Kingdom Animalia: The Invertebrates. DVD Description Our Invertebrates DVD looks at evolutionary trends like cephalization, segmentation, changes in body symmetry, increases in locomotive efficiency and the development of increasingly complex tissues and organs that occur as one goes from the sponges of phylum Porifera to the octopuses of class Cephalogoda. Structural, functional, and behaviorial adaptations unique to members of each of the invertebrate phyla including: Cnidaria, Platyhelminthes, Nemotoda, Annelida, Arthropoda, Mollusca, Echinodermata are discussed in detail.


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Eukaryotic Cell Cycle | Biology | Genetics


To purchase this DVD please visit www.greatpacificmedia.com Segment from the program Cellular Reproduction: Mitosis, Cytokinesis, and the Cell Cycle DVD Description Our Mitosis DVD starts by introducing the cell cycle and briefly describing the process of binary fusion in prokaryotic cells before going on to a detailed look at the eukaryotic cell cycle from the G1, S and G2 phases of interphase through the prophase, metaphase, anaphase and telophase phases of mitosis. The difference between cytokinesis in animal and plant cells is then illustrated. The program concludes by explaining why an understanding of cellular division is critical to: conquering cancer, cloning organs, and perhaps even reversing aging.


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Fungi are Heterotrophic | Biology


To purchase this program please visit www.greatpacificmedia.com Segment from the program Fungi: Decomposers and Parasites. DVD Description Our Fungi DVD begins by describing hyphae - the filamentous, thread-like fungal cells that intertwine to form interwoven masses called mycelium which are usually only visible when differentiated into sexual structures such as mushrooms, puffballs, and powdery molds. How fungi obtain nutrients either through parasitic or mutualistic relationships or decomposing dead bodies is examined before looking at their economic, ecological, and health impacts. The major divisions of fungi are then examined and some of the unique adaptations found in kingdom Fungi discussed.


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Birds Vertebrates | Biology | Nature


To purchase this program please visit www.greatpacificmedia.com Segment from the program KIngdom Animalia: The Vertebrates. DVD Description Our Vertebrates DVD begins by looking at the evolutionary origins of vertebrates before going on to examine primitive aquatic vertebrates such as jawless hagfish and lampreys and the more sophisticated sharks and rays of class Chondrichthyes and the "bony" fish of class Osteichthyes. The program then studies evolutionary adaptations such as: changes in skeletal structure, skin and eggs resistant to evaporation, control of body temperature, and increased circulatory and cognitive capacity that one sees going from class Amphibia to classes Reptilia and Aves and on to class Mammalia.


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Neuron Resting Potential


To purchase this program please visit www.greatpacificmedia.com Segment from the program The Nervous System: Neurons, Networks, and the Human Brain. Our Nervous System DVD begins by examining the structure and function of neurons; resting, action and post-synaptic potentials; and reflexes and neural networks. The peripheral, somatic, autonomic, sympathetic and parasympathetic nervous systems are introduced before looking at the central nervous system. After describing spinal cord structure and function the program then examines the human brain including the medula, pons, and cerebellum of the hindbrain; the recticular formation of the midbrain; and the thalamus, limbic system and cerebral cortex of the forebrain.


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Skeletal Muscle Structure


To purchase this DVD please visit www.greatpacificmedia.com Segment from the program Muscular, Skeletal, and Integumentary Systems: Defining Our Form DVD Description Begins by introducing the dermis and epidermis of the skin; the sweat and sebaceous glands; and the skins role in protecting against microbial invasion, ultra-violet radiation and in producing vitamin D. The program then looks in-depth at the structure and function of skeletal, cardiac and smooth muscle before looking at the structure of cartilage and bone and the skeletal systems role in protecting vital organs, producing blood cells, storing nutrients and in conjunction with the muscular system, producing movement.


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Cytoskeleton Microtubules | Cell Biology


Segment from the program Cells: The Structure of Life. To purchase this program please visit www.greatpacificmedia.com


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Atomic Structure Overview | Cell Biology | Biochemistry


Segment from the program Biochemistry I: Atoms, Ions, and Molecules. To purchase this program please visit www.greatpacificmedia.com


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Bone Structure | Biology | Anatomy


To purchase this DVD please visit www.greatpacificmedia.com Segment from the program Muscular, Skeletal, and Integumentary Systems: Defining Our Form DVD Description Begins by introducing the dermis and epidermis of the skin; the sweat and sebaceous glands; and the skins role in protecting against microbial invasion, ultra-violet radiation and in producing vitamin D. The program then looks in-depth at the structure and function of skeletal, cardiac and smooth muscle before looking at the structure of cartilage and bone and the skeletal systems role in protecting vital organs, producing blood cells, storing nutrients and in conjunction with the muscular system, producing movement.


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Capillaries | Biology | Anatomy


To purchase this DVD please visit www.greatpacificmedia.com Segment from the program Respiration and Circulation, Gas Exchange, Molecular Transport. DVD Description Our Respiration Circulation DVD looks at the flow of air through the conducting portions of the respiratory system to the alveoli before examing: the role of hemoglobin in gas exchange and O2 and CO2 transport in the blood; the operation of the respiratory control center; and the mechanics of breathing. The program then investigates the composition of blood and how it flows through the heart, arteries, capillaries and veins before looking at the role of the lymphatic system in fighting infection, transporting fats, and returning interstitial fluid to the blood.


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How Ecosystems Work | Biology | Ecology


Purchase DVD here www.greatpacificmedia.com Segment from the program How Ecosystems Work: Energy Flow and Nutrient Cycles. DVD Description Looks at the processes that are fundamental to all ecosystems. First the concepts of primary productivity, trophic levels, food chains, energy pyramids and the flow of energy through ecosystems are introduced. The program then explains how carbon, nitrogen, phosphorous and water cycle through ecosystems and how human activities can disrupt these cycles and throw them out of balance leading to accelerated eutrophication in lakes in the case of phosphorous imbalances and global warming in the case of carbon imbalances.


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Stomach Digestion


To purchase this program please visit www.greatpacificmedia.com Segment from the program Digestion and Excretion: Absorption, Exretion, and Homeostasis. DVD Description Our Digestion DVD first examines the mechanical and chemical breakdown of food that occurs in the mouth and stomach before looking at digestion and absorption in the small intestine and the enzymes and other chemicals secreted by the liver, gall bladder, and pancreas that aid in the process. The program then looks at the synthesis of vitamins by bacteria in the large intestine and then goes on to explore the complex structures in the kidney that allow them to filter wastes out of the blood while returning water and nutrients.


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Covalent Bonds | Cell Biology | Biochemistry


Segment from the program Biochemistry I: Atoms, Ions, and Molecules. To purchase this program please visit www.greatpacificmedia.com


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Cellular Respiration Occurs in Mitochondria | Cell Biology


Segment from the program Glycolysis and Cellular Respiration: The Biology of Energy. To purchase this program please visit www.greatpacificmedia.com


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Cell Membranes and Cell Walls | Cell Biology


Segment from the program Cell Membranes: The Boundaries of Life. To purchase this program please visit www.greatpacificmedia.com


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Glycolysis Cellular Respiration Overview | Cell Biology


Segment from the program Glycolysis and Cellular Respiration: The Biology of Energy. To Purchase this program visit www.greatpacificmedia.com


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Organic Molecules Carbohydrates | Cell Biology | Biochemistry


Segment from the program Biochemistry II: Carbohydrates, Proteins, Lipids, and Nucleic Acids. To purchase this program please visit www.greatpacificmedia.com


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HIV destroys helper T-cells | Biology | Anatomy | Immunology


To purchase this program please visit www.greatpacificmedia.com Segment from the program The Immunological System: Recognition, Attack, and Memory. DVD Description Our Immune System DVD starts by looking at external barriers to microbial attack such as the skin and mucus membranes and non-specific internal defenses such as macrophages, natural killer cells, and the inflammatory response. The program then delves into the immune response including the recognition of invaders by antibodies and T-cell receptors, the destruction of invaders by antibodies and cytotoxic T-cells, and the immunity conferred by memory cells. A discussion of how vaccinations work and current AIDS research concludes the program.


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Competition, Predation, and Symbiosis | Biology | Ecology


Purchase DVD here www.greatpacificmedia.com DVD Title Community Interactions: Competition, Predation, and Symbiosis. DVD Description Our Competition, Predation and Symbiosis DVD first describes the concepts of community, coevolution and ecological niche before looking at how competition results from overlapping niches. The program then examines predator-prey relationships and the various adaptations such as camouflage, warning coloration, mimicry and chemical warfare that have evolved as a result of these relationships. Symbiotic relationships such as parasitism, commensalism, and mutualism are then explored. A discussion of primary and secondary succession concludes the program.


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Plasmids | Genetics | Biology


To purchase this program please visit www.greatpacificmedia.com Segment from the program Biotechnology: Engineering Genomes. DVD Description Our Biotechnology DVD first looks at major research areas in biotechnology such as the Human Genome Project and the various forms of recombinant DNA technology that produce transgenic plants and animals. The program then goes on to look at the tools used by biotechnologists such as restriction enzymes, plasmids, vector and vector less insertion of genes into genomes, and the production of genes via polymerase chain reactions. The program then concludes by looking at the future of biotechnology and some of the environmental, economic, and ethical issues raised by biotech.


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Heart Structure | Biology | Anatomy


To purchase this DVD please visit www.greatpacificmedia.com Segment from the program Respiration and Circulation, Gas Exchange, Molecular Transport. DVD Description Our Respiration Circulation DVD looks at the flow of air through the conducting portions of the respiratory system to the alveoli before examing: the role of hemoglobin in gas exchange and O2 and CO2 transport in the blood; the operation of the respiratory control center; and the mechanics of breathing. The program then investigates the composition of blood and how it flows through the heart, arteries, capillaries and veins before looking at the role of the lymphatic system in fighting infection, transporting fats, and returning interstitial fluid to the blood.


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Diploid Haploid Cells | Genetics | Biology


To purchase this program please visit www.greatpacificmedia.com Segment from the program Meiosis, Sexual Reproduction and Sexual Variability. DVD Description Our Meiosis DVD begins by comparing asexual and sexual reproduction and describing chromsomes and homologous pairs. The difference between haploid and diploid cells and the three major eukaryotic life cycles are then described. The program goes on to a detailed description of all the stages of Meiosis I and II including prophase I and II, metaphase I and II, anaphase I and II, and telophase I and II. In the process students are introduced to phenomena such as crossing over and provided an explanation of how meiosis creates genetic variability in a species.


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Sex Linked Traits | Genetics | Biology


To purchase this program please visit www.greatpacificmedia.com Segment from the program Understanding Inheritance: Mendel, Method, and Mapping. DVD Description Our Mendel DVD delves into the fundamental aspects of genetic inheritance and how Mendel discovered the principles that form the foundation of modern genetics. The program first goes to Mendel's pea garden to investigate how Mendel came to propose the Laws of Dominance, Independent Assortment and Segregation and how those laws have been modified as a result of work done by those that followed Mendel. The program later explores sex-linked traits, the use of Punnet squares, incomplete dominance, codominance, and polygenic inheritance.


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Cytokinesis Animal Plant | Biology | Genetics


To purchase this DVD please visit www.greatpacificmedia.com Segment from the program Cellular Reproduction: Mitosis, Cytokinesis, and the Cell Cycle DVD Description Our Mitosis DVD starts by introducing the cell cycle and briefly describing the process of binary fusion in prokaryotic cells before going on to a detailed look at the eukaryotic cell cycle from the G1, S and G2 phases of interphase through the prophase, metaphase, anaphase and telophase phases of mitosis. The difference between cytokinesis in animal and plant cells is then illustrated. The program concludes by explaining why an understanding of cellular division is critical to: conquering cancer, cloning organs, and perhaps even reversing aging.


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Light Reactions | Cell Biology | Photosynthesis


Segment from the program Photosynthesis: Transforming Light to Life. To purchase this program please visit www.greatpacificmedia.com


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Water Cycle | Biology | Ecology


Purchase DVD here www.greatpacificmedia.com Segment from the program How Ecosystems Work: Energy Flow and Nutrient Cycles. DVD Description Looks at the processes that are fundamental to all ecosystems. First the concepts of primary productivity, trophic levels, food chains, energy pyramids and the flow of energy through ecosystems are introduced. The program then explains how carbon, nitrogen, phosphorous and water cycle through ecosystems and how human activities can disrupt these cycles and throw them out of balance leading to accelerated eutrophication in lakes in the case of phosphorous imbalances and global warming in the case of carbon imbalances.


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Populations Biotic Potential | Biology | Ecology


Purchase DVD here www.greatpacificmedia.com Segment from the program Populations: Biotic Potential, Environmental Resistance. Our Population DVD initially looks at how population growth rates are calculated and introduces the concepts of biotic potential, exponential growth and environmental resistance before looking at boom-and-bust cycles and the carrying capacity of ecosystems. Density independent limits to population growth such as changes in the weather, as well as density dependent limits such as predation, parasitism, and competition are then examined. A discussion of the distribution of populations over space and time concludes the program.


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Climax Communities | Biology | Ecology


Purchase DVD here www.greatpacificmedia.com Segment from the program: Community Interactions: Competition, Predation, and Symbiosis. DVD Description Our Competition, Predation and Symbiosis DVD first describes the concepts of community, coevolution and ecological niche before looking at how competition results from overlapping niches. The program then examines predator-prey relationships and the various adaptations such as camouflage, warning coloration, mimicry and chemical warfare that have evolved as a result of these relationships. Symbiotic relationships such as parasitism, commensalism, and mutualism are then explored. A discussion of primary and secondary succession concludes the program.


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Recombinant DNA Technology | Genetics | Biology


To purchase this program please visit www.greatpacificmedia.com Segment from the program Biotechnology: Engineering Genomes. DVD Description Our Biotechnology DVD first looks at major research areas in biotechnology such as the Human Genome Project and the various forms of recombinant DNA technology that produce transgenic plants and animals. The program then goes on to look at the tools used by biotechnologists such as restriction enzymes, plasmids, vector and vector less insertion of genes into genomes, and the production of genes via polymerase chain reactions. The program then concludes by looking at the future of biotechnology and some of the environmental, economic, and ethical issues raised by biotech.


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Cell Structure Overview | Cell Biology


Segment from the program Cells: The Structure of Life. To purchase this program visit www.greatpacificmedia.com


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Nonvascular Plants | Biology


To purchase this program please visit www.greatpacificmedia.com Segment from the program Kingdom Plantae: Builders of Biomes. DVD Description Our Plant DVD starts by looking at the watery origins of modern land plants before looking at the adaptations that have evolved in plants and enabled them to spread to nearly every corner of the Earth. These adaptations include: roots, which anchor plants and absorb water and nutrients from the soil; vessels, that conduct water and nutrients throughout a plant; lignin, which stiffens and supports plants enabling them to grow taller; pollen, which frees plants from a dependence on water for reproduction; and fruits, which entice animals to unwittingly spread a plants seeds far and wide.


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How trees and plants grow | Cell Biology | Botany


Segment from the program Photosynthesis: Transforming Light to Life. To purchase this program please visit www.greatpacificmedia.com


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Introduction to how the immune system works | Biology | Anatomy | Immunology


To purchase this DVD please visit www.greatpacificmedia.com Segment from the program The Immunological System: Recognition, Attack, and Memory. DVD Description Our Immune System DVD starts by looking at external barriers to microbial attack such as the skin and mucus membranes and non-specific internal defenses such as macrophages, natural killer cells, and the inflammatory response. The program then delves into the immune response including the recognition of invaders by antibodies and T-cell receptors, the destruction of invaders by antibodies and cytotoxic T-cells, and the immunity conferred by memory cells. A discussion of how vaccinations work and current AIDS research concludes the program.


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DNA Mutations | Genetics | Biology


To purchase this program please visit www.greatpacificmedia.com Segment from the program DNA, RNA, and Protein Synthesis: Information to Structure. DVD Description Our DNA DVD looks first at the structure of DNA before going on to describe how DNA carries out its four major functions: the storage of information; the replication of information; creating slight changes in the information through mutations that forces of natural selection act upon; and the translating of information into the proteins that define an individual. During this discussion students are introduced to: point mutations; insertions and deletions; the genetic code; transfer, messenger, and ribosomal RNA; and the process of replication and translation.


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Populations Distribution | Biology | Ecology


Purchase DVD here www.greatpacificmedia.com Segment from the program Populations: Biotic Potential, Environmental Resistance. Our Population DVD initially looks at how population growth rates are calculated and introduces the concepts of biotic potential, exponential growth and environmental resistance before looking at boom-and-bust cycles and the carrying capacity of ecosystems. Density independent limits to population growth such as changes in the weather, as well as density dependent limits such as predation, parasitism, and competition are then examined. A discussion of the distribution of populations over space and time concludes the program.


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Plant Protists | Biology


To purchase this program please visit www.greatpacificmedia.com Segment from the program Protists: The Origins of Eukaryotic Diversity. DVD Description Our Protist DVD explores the evolutionary history of eukaryotes while examining the incredible diversity that exists in kingdom Protista reflected in organisms such as Euglena which have both animal and plant-like qualities. The program then looks at animal-like zooflagellates, sarcodines, ciliates, and sporozoans; fungus-like slime molds, and plant-like dinoflagellates, diatoms, and englenoids. Multicellular red, brown and green algae are examined and why modern biology places all three in kingdom Protista rather than kingdom Plantae explained.


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Steroid, thyroid hormones and the endocrine system | Anatomy | Biology


To purchase this program please visit www.greatpacificmedia.com Segment from the program The Endocrine System: Molecular Messengers, Chemical Control. DVD Description Our Endocrine System DVD first looks at the chemical structure of various hormones, the hormone receptors found on target cells, and the feedback mechanisms that regulate hormone levels. After explaining the difference between exocrine and endocrine glands the program then looks at the various endocrine glands and organs including: the hypothalamus; the pituitary, thyroid, parathyroid and adrenal glands; the pancreas, testes and ovaries; and organs such as the thymus, kidneys, stomach, small intestine and heart that produce hormones.


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Mendel Single Trait Experiments | Genetics | Biology


To purchase this program please visit www.greatpacificmedia.com Segment from the program Understanding Inheritance: Mendel, Method, and Mapping. DVD Description Our Mendel DVD delves into the fundamental aspects of genetic inheritance and how Mendel discovered the principles that form the foundation of modern genetics. The program first goes to Mendel's pea garden to investigate how Mendel came to propose the Laws of Dominance, Independent Assortment and Segregation and how those laws have been modified as a result of work done by those that followed Mendel. The program later explores sex-linked traits, the use of Punnet squares, incomplete dominance, codominance, and polygenic inheritance.


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Organic Molecules DNA RNA | Cell Biology


To purchase this program please visit www.greatpacificmedia.com Segment from the program Biochemistry II: Carbohydrates, Proteins, Lipids, and Nucleic Acids. DVD Description Our Biochemistry DVD starts by explaining how polymers are synthesized out of smaller monomers through dehydration reactions that release H2O molecules in the process. The program goes on to look at the role of carbohydrates in energy storage and as structural building blocks; the use of lipids in synthesizing plasma membranes, fats and steroid hormones; proteins in their role as enzymes, hormones, and structural materials; and nucleic acids use in storing information and transferring energy.


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Polygenetic Inheritance | Genetics | Biology


To purchase this program please visit www.greatpacificmedia.com Segment from the program The Human Genome: Traits, Disorders, and Treatments. DVD Description Our Human Genome DVD begins by looking at single gene genetic disorders including recessive disorders such as Tay-Sachs and sickle-cell anemia, dominant disorders such as Huntington's disease, and sex-linked disorders such as hemophilia and color blindness. The program then looks at polygenic inheritance and environmental influences on the expression of genes. Chromosomal inheritance of disorders such as Down syndrome are then explored before looking at the ethical issues involved in genetic testing and the hope promised by the Human Genome Project.


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The pancreas, testes and ovaries are endocrine glands | Biology | Anatomy


To purchase this program please visit www.greatpacificmedia.com Segment from the program The Endocrine System: Molecular Messengers, Chemical Control. DVD Description Our Endocrine System DVD first looks at the chemical structure of various hormones, the hormone receptors found on target cells, and the feedback mechanisms that regulate hormone levels. After explaining the difference between exocrine and endocrine glands the program then looks at the various endocrine glands and organs including: the hypothalamus; the pituitary, thyroid, parathyroid and adrenal glands; the pancreas, testes and ovaries; and organs such as the thymus, kidneys, stomach, small intestine and heart that produce hormones.


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Prophase | Genetics | Biology


To purchase this program please visit www.greatpacificmedia.com Segment from the program Meiosis, Sexual Reproduction and Sexual Variability. DVD Description Our Meiosis DVD begins by comparing asexual and sexual reproduction and describing chromsomes and homologous pairs. The difference between haploid and diploid cells and the three major eukaryotic life cycles are then described. The program goes on to a detailed description of all the stages of Meiosis I and II including prophase I and II, metaphase I and II, anaphase I and II, and telophase I and II. In the process students are introduced to phenomena such as crossing over and provided an explanation of how meiosis creates genetic variability in a species.


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Aquatic Biomes Wetlands | Biology | Ecology


Purchase this DVD here www.greatpacificmedia.com Segment from the program: Aquatic Biomes: Oceans, Lakes, Rivers, and Wetlands. DVD Description Our Aquatic Biomes DVD begins by looking at the characteristics common to all aquatic environments. The program then examines the littoral, limnetic and profundal zones of freshwater lakes, the seasonal cycling of O2 and nutrients, and the difference between oligotrophic and eutrophic lakes before observing how life changes along the course of rivers and explaining the ecological importance of wetlands. The photic, aphotic, and benthic ocean zones are then described and marine habitats such as tide pools, kelp forests, coral reefs, and vent communities explored.


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