What letter is the answer?

What causes air masses to move? A difference in air pressure and temperature occurs. Weather conditions change rapidly to produce storms. A collision takes place between two natural wind patterns.

During mitosis, the sister chromatids separate and move to opposite ends of a cell. Describe the two daughter cells that would form if the sister chromatids did not separate

Most mice living on the mainland of florida are brown, but the mice that live on the sand dunes of the barrier islands have white fur.

What are the two major factors determining the distribution of terrestrial biomes?

Technology has failed to produce sufficient food as the world population grows

What was unique about the mutations of obtusacanthus

Homeostasis in living things is regulated by the action of? Question 5 options: a. The nervous system, only b. The endocrine system, only c. Both the nervous and endocrine systems d. Neither the nervous nor the endocrine system

What type of cell may be able to be used to treat conditions like paralysis?

We went to the Apple Bee's across the street from the park; (however/moreover), I didn't have a chance to go feed the ducks. a. however b. moreover

How is cystic fibrosis treated?