Why do living things need O2

How would someone identify an above ground fault on a geologic map?

Describe 3 ways oxygen gas is removed from the atmosphere and used.

What happens if the environment changes and a population in that environment has developed no new adaptations?

It is possible for a cell to make proteins that last for months; hemoglobin in red blood cells is an example. however, many proteins may be degraded in days or even hours. what is the advantage of short-lived proteins?

Which of the following accurately describes and example of how materials can move across the cell membrane through active transport

A patient does not have a family history of hypertension. This means which of the following? She will not get hypertension, even if she is a heavy smoker. She will not get hypertension, regardless of her red blood cell count.

How long does cavity filling numbness last?

Why does the article refer to pesticide resistance as artificial selection instead of natural selection?

Is 28.5 cm tall qualitative or quantitative data

What is the product of transcription and translation