Q: What is the outer layer of an axon that acts like a layer of insulation, similar to the plastic that encases an electrical cord? Choices: - lipids sheath - nerve sheath - layer sheath - myelin sheath A:
myelin sheath

Q: Where do most of the steps of cellular respiration take place? Choices: - ribosomes - nucleus - cytoplasm - mitochondria A:
mitochondria

Q: In single-celled organisms, what does the plasma membrane extensions help the organisms to do? Choices: - increase - inspect - prevent - move A:
move

Q: What is the process when animals maintain an internal temperature? Choices: - osmoregulation - bioaccumulation - homeostasis - thermoregulation A:
thermoregulation