Life Science Chapter 8

Match it! Select the correct answer from the pull down...Good luck!

Scientists think the first cells were anaerobic because there was no oxygen available when they developed.

Which of the following is not an evolutionary change in early hominids that lead to the rise of modern humans?

What percentage of the original substances will be present after two half-lives have occurred?

245 million years ago, the continents were one giant landmass called _________.

The atmosphere has always been composed of oxygen.

The first primate ancestors, called hominids, appeared during the Cenozoic era.

Humans and human-like ancestors are called ___________.

Where did life originate?