26. Whales are tetrapods—but living whales do not have four limbs. What is a more accurate way to describe tetrapods? (highlight your answer)
a. Animals that have at least two limbs
b. Animals that descended from a four-limbed ancestor
C. Animals that have four limbs at some point in their lives
d. Animals that evolved the ability to survive without limbs

Epinephrine is a hormone released from the adrenal gland of the body, most often in a stressful situation. it is known as the "fight-or-flight" hormone. one way that it causes a response in the body is to activate receptors on muscle cells. where are these cellular receptors located? a. on the cell membrane b. in the nucleus c. on the cell wall d. around the mitochondria

An example of a trait that would be considered acquired and inherited is a. a cleft chin b. muscle tone c. scar tissue d. freckled skin

Why does it matter if osmosis is put into a “scab” or a “nosebleed? ” where would that leave him?