All of these environmental influences directly contribute to disease in humans except A) smog B) global warming C) radioactive elements such as radon. D) heavy metals such as lead and mercury.

IN what type of ecosystem can brown bears be found?

Which of these can be used to identify metamorphic rocks? Select all that apply. color texture hardness chemical composition

Unlike meiosis, mitosis can A. use crossing-over to produce genetically varied offspring B. cut the chromosome number in half. C. result in two diploid daughter cells D. produce new cells

What percentage does each square in a punnett square represent? A. 25% B. 33% C. 50%

Which of these is a process by which water, carbon dioxide, and energy are formed?

Which best describes the purpose of a controlled experiment? A. to make sure the results of the experiment support the hypothesis B. to prevent a dangerous condition resulting from a reaction C.

Bones, joints, ligaments, and cartilage are parts of the a) refrigerator b) muscles c) skeleton

Chloroplasts cannot move on their own. How do they move around the cell?

What causes leaves to dry out

And increase in food and a decrease in predators would most likely