The diaphragm, next time just google it lol
Merlin/ NF2 tumor suppressor functions through impacting mechanisms related to proliferation, apoptosis, motility, adhesion, and invasion.
Answer:
The answer is C, intrinsic reward.
Explanation:
Likely the chronological age, mainly because it would explain the differences in puberty stages between the two boys, which is an example of physical maturation.