Cycles of Life: Exploring Biology


Frogs’ cellular structures are similar to humans’.
 

A video instructional series on biology for college and high school classrooms and adult learners; 26 half-hour video programs and guide.

Click on the name of the video to play. Available ONLY from school (on the Schenectady INTRAnet).

Will be available  by September 8th.

Cycles of Life provides a comprehensive overview of the living world, from the simplest single-celled organisms to the vast web of Earth’s ecosystems. Through original microvideography, 3-D animations, video field trips inside laboratories, and footage shot around the world, these programs present the processes that energize nature and the interrelationships that sustain life. Beyond describing the latest discoveries in the field, the series examines the scientific method, showing how biology is a dynamic process of inquiry.

 

Individual Program Descriptions

1. The Unity and Diversity of Life
An overview of biology that addresses what constitutes life and its inherent unity and diversity.

2. Chemical Foundations of Life
The functions and main forms of matter, including atoms, molecules, elements, and compounds.

3. Secrets of the Cell
What cells are and why they are crucial to the understanding of life processes.

4. The Power of Metabolism
The importance of keeping a chemical balance within the body, with a case study about gymnast Cathy Rigby.

5. Energy In — Energy Out
The pathways by which cells trap and use energy: photosynthesis and aerobic respiration.

6. Generations: Mitosis and Meiosis
How cell division defines an organism and allows it to grow, reproduce, and repair itself, plus the role of heredity in passing along traits.

7. Patterns of Inheritance
Modern-day experiments on crops build on Gregor Mendel's theory of inheritance.

8. DNA: Blueprint of Life
Plants and animals are genetically engineered for desirable traits now. How far should we go with this technology?

9. Proteins: Building Blocks of Life
The structure and order of proteins along with the unique property of DNA and proteins to retain and replicate genetic code.

10. Microevolution
Darwin's theory of evolution and the work by Mayr in the 1940s, who further defined "species."

11. Macroevolution
Looking at the larger picture of species' changes over time as seen in the fossil record.

12. Viruses, Bacteria, and Protistans
The science of classification, from the Carl Linnaeus-based system to today's five kingdoms.

13. Fungi, Plants, and Animals
How the evolution of and relationships among life forms determine their biological classification, with an evolutionary overview of three kingdoms: fungi, plants, and animals.

14. Plant Structure
The role of plants; the predominance of angiosperms, or flowering plants; and the way plant roots collect nutrients.

15. Plant Reproduction
The remarkable mechanisms plants use to maximize reproduction opportunities, such as wind, insects, and birds.

16. Animal Structure
The features common to all animals: a musculoskeletal system for motion plus homeostasis and feedback for equilibrium.

17. Circulation: A River of Life
How the movement of blood throughout the circulatory system in animals sustains life.

18. Immunity
Physical and chemical defenses, including surface barriers, that protect animals from disease.

19. Respiration
The process of taking in oxygen and releasing carbon dioxide common to most animals, including a look at respiratory adaptation and aerobic respiration.

20. Digestion and Fluid Balance
To survive, organisms need to process fluids and nutritional elements as well as efficiently eliminate waste.

21. The Neural Connection
The many biochemical and cellular characteristics that the nervous systems of vertebrates share, including neurons that allow animals and humans to sense their environment.

22. Endocrine Control: Systems in Balance
The endocrine system and the role of the nervous system, essential organ systems, and hormones.

23. Animal Reproduction and Development
Cell development and differentiation and a comparison of different modes of reproduction.

24. Populations and Communities
How plants and animals in a community depend on each other's survival, as seen in the example of the Woolly Star, an endangered shrub.

25. Ecosystems and the Biosphere
How the delicate balance of interactions in an ecosystem determines survival for its inhabitants.

26. The Human Factor
How humans use technology to affect ecosystems, with a discussion of global warming and the effect CO2 has on plant growth and the atmosphere.