The answer is B because mitochondria supports the respiration that it need to produce.
The answer to this question is the sacrum. The sacrum is a triangular bone that forms the base of the spinal column. This bone has a vital role in the skeletal system and also supports the weight of the upper body of a person and this bone and many nerves are inside the sacrum.
Charged amino acid is the correct answer to this
Answer:
contraction and relaxation of the heart
Explanation:
