In an experiment, the condition that is manipulated by a scientist is the

The steady state so vital to life is possible because Group of answer choices a. the cell continually takes up energy from the environment. b. all reactions are at equilibrium. c. the cell cannot convert energy from one form to another.

Jacob is studying a population of wrens in Michigan. Over several years, he notices that the population always stabilizes at around 45 individuals. What is the reason for this?

An idea most likely to represent "common knowledge" if

What other chordate are birds most closely related to? A. amphibians B. mammals C. reptiles D. boney fish

How are primetive organisms different from advance organisms

What do you notice about the width of an artery wall versus the width of a vein wall? Why does this make sense given the function of the vessels?

explain how the runoff waters from farm to land and golf courses might be dangerous to organisms living in ponds, rivers, or streams.

During which period of development is the unborn baby most at risk of developing a structural defect due to the effects of a teratogen

A green plant absorbs light. A frog eats flies. These are both examples of how organisms (1) obtain energy (2) escape predators (3) produce offspring (4) excrete waste

How do birth rates and death rates influence the population size