Answer:
because without it we wouldnt be able to breath
Explanation:
I believe the answer is the nucleus, because it basically holds everything and is the center of the whole cell!
Explain the role of Calcium(Ca+) in askeletal muscle contraction. Role of calcium { Ca++}: By BONDING to the TROPONIN it causes the TROPOMYOSIN to MOVE from its blocking position on the active sites on the actin filaments SO the CROSS BRIDGES CAN ATTACH.
Answer:
The answer is D
Explanation:
This is so because these joints ,the rounded head of the bone fits into the socket (concave articulation) of the adjacent bone.
