Bill Nye: Biodiversity Worksheet Movie Summary: In this program, he discusses the importance of biodiversity and ecosystems, and their influence on humans. He demonstrates the results when natures balance is upset, and points out the impact of mankind on the environment.... (more details for Bill Nye: Biodiversity*)
Bill Nye Biodiversity Worksheet
The age of the Earth is about 4.54 billion years with the earliest undoubted evidence of life on Earth dates at least from 3.5 billion years ago. Biodiversity is the variety and variability of life on Earth and the Bill Nye Biodiversity worksheet located at the links above focuses on how biodiversity is typically a measure of variation at the genetic, species, and ecosystem level. Students observe that biodiversity is not distributed evenly on Earth, and is richest in the tropics. These tropical forest ecosystems cover less than 10 percent of earth's surface, yet contain about 90 percent of the world's species. The Bill Nye Biodiversity worksheet shows students biodiversity generally tends to cluster in hotspots and has been increasing through time but will be likely to slow in the future.
Bill Nye Biodiversity worksheet, available in pdf and doc format has questions that focus students to see that rapid environmental changes typically cause mass extinctions and more than 99.9 percent of all species that ever lived on Earth, amounting to over five billion species, are estimated to be extinct. And if we are not careful the remaining organisms may go the same route.