The process by which organisms maintain a relatively stable internal environment.

Take the Global Trends Quiz. Click on "Answers" at the bottom of the quiz and check your work. What has been the trend in life expectancy in India from 1881 to present day?

What enzyme is most important for DNA replication and why?

If two species have each descended from the same common ancestor then what happens?

Which of the following environmental impacts of mining could result in damage to buildings, including tilting, foundation cracking and disruption of utility lines? loss of biodiversity acid mine drainage land subsidence scarring of surface land

The antibiotic penicillin inhibits the ability of bacteria to:

Which of the following terms means "the system used to classify and group living organisms"? A. Cladogram B. Taxonomy C. Hierarchy D. Taxidermy

How do plants obtain carbon atoms?. A. from carbon in the soil. B. from microorganisms that live in soil. C. from carbon dioxide in the atmosphere. D. from animals that feed on the plants

What kind of change occurs when ice becomes liquid water? O melting reaction O chemical change O physical change and sses of O substance change ergy, and sses of cules

Which of these provides evidence from developmental biology of a shared evolutionary history? A. The skeletal structures of a leg of a horse and a flipper of a whale are very similar. B.

Which gas supplies the energy for storms