Cells use passive and active transport to move materials across the cell membrane for the maintenance of a constant internal environment. what is this process called?
a. diffusion
b. evolution
c. homeostasis
d. respiration

Speed is the ratio of the distance of an object moves to

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above

Astudent completed a lab report. which correctly describes the difference between the “question” and “hypothesis” sections of her report? “question” states what she is asking, and “hypothesis” states the result of her experiment. “question” states what she is asking, and “hypothesis” states what she thinks the answer to that question is in “if . . then . . because” format. “question” describes what she is trying to find out, and "hypothesis" states the procedures and methods of data collection. “question” describes what she is trying to find out, and “hypothesis” states any additional information or prior knowledge about the question.