What term defines varieties or populations of human beings distinguished by physical traits such as hair, eyes, skin color, and body shape?

a. class

b. cohort

c. ethnicity

d. race

List the three bacterial species in order of their increasing fastidiousness

Where are slides placed on a microscope

Approximately what percentage of americans are not regularly physically active?

Explain how energy moves through a food chain and a food web.

What is the outcome for earth after the moon rotates around it?

What is a carbon footprint? A. A measure of how much carbon dioxide someone releases into the air B. A measure of how much carbon is fixed by bacteria C. A measure of how much carbon a person absorbs in their life D.

Why doesn't the stomach digest itself? a. the stomach wall is not composed of protein, so it is not affected by proteolytic enzymes. b. the digestive enzymes of the stomach are not strong enough to digest the stomach wall. c.

States that genetic information flows in one direction

Suggest ONE reason why some plants have no dispersing seeds

Which of the following is a possible order of the scientific method