Which type of marine ecosystem do you think supports the least life? Explain your answer.

If a scientist finds the remains of a plant between a rock layer that contains 400 million-year-old Phacops fossils and a rock layer that contains 230 million-year-old Tropites fossils, how old could the plant fossil be?

What conditions are required for evolution to occur?

Pleas tell me what is a calorie

Which characteristics are used to differentiate between the six kingdoms?

Using the overall equation for photosynthesis, explain which components relate to j. b. priestley's observation that "plants restore the air that animals injure.

True or false? bupropion is an antidepressant medication that is useful as a smoking cessation aid.

A new island forms due to an underwater volcano. Birds from the mainland colonized the island. This is an example of a. Behavioral isolation b. Reproductive isolation c. Geographic isolation

What is the differences between prokaryotic and eukaryotic ... ?

A finger-like projection of the cell membrane and cytoplasm use to catch food and/or move (false-foot)

Who was one of the first scientist to use numbers to look for patterns in experimental data