What is released or absorbed whenever chemical bonds form or are broken?

Describe when and where the marine species the Dunkleosteus lived

An anthropologist finds a fossil in Africa that is 100,000 years old. To which species could the specimen belong?

What is the benefit of putting human genes into an animal's DNA?

Why does a star of average mass expand into a red giant?

Why do different organisms live in different habitats?

Which of the below is TRUE regarding desertification? a. It is likely to happen in any type of climate b. It produces rich desert ecosystems c. It is not usually impacted by droughts or climate change d.

What is considered a pre existing medical condition?

Humans do not eat the algae directly from the ocean, so how can we still be affected by it?

In an effort to control the ongoing cholera epidemic affecting Haiti, health officials are considering the use of cholera vaccines. One difficulty they are facing is the limited vaccine supply.

which term refers to the structure that forms the surface of a cell separeting its conctents from the outside world