What does a Euglena require to exhibit phototactic behavior? A.
a contractile vacuole

B.
cilia

C.
an eyespot

D.
a pseudopod

Which of the following structures is not found in both plant and animal cells? a) chloroplast b) cytoskeleton c) ribosomes d) mitochondria

If you are in a chronic state of anxiety but also suffer from moment of sudden, intense fear you are problably suffering. from

Which of the following is the best definition of aerobic respiration? o a. the cellular process that releases energy by breaking down glucose o b. physical activity that involves the repeated motion of large muscle groups o c. physical activity that increases heart rate and breathing rate o d. the cellular process that converts solar energy to chemical energy