Plants often enter dormancy

a. when rainfall is abundant.

b. just before they form flowers.

c. during winter.

d. in the spring

Consider the following data. which would have to happen to make the population growth of cheetahs in 2013 equal to the population growth observed in 2011 and 2012

Mitosis how do living things grow and repair themselves

An atom of calcium contains 20 protons. How many electrons does it have?

Which of the following best describes how cleaning products like chlorine, hydrogen peroxide, and soap influence the infectious rate of a virus on a surface as discussed in the article?

The centrally located area outside of and between the lungs which contains the heart and its blood vessels as well as the trachea, esophagus, bronchial tubes, thymus gland, and lymph nodes is known as the

Why can't humans digest all carbohydrates?

Why do water and solutes leave capillaries at the arterial end? A) the net filtration pressure of the blood is higher at the arterial end than it is at the venous end.

Which of the following best describes scientific theory? A.) it cannot be changed B.) it explains very few observations C.) it is basically speculation D.) it may change

What structure is responsible for the opening and closing of the stomata

Which of these changes is a chemical change?