Answer and Explanation:
No thx, I have to study for my biology EOC exam..
The word to fill in the blank would be ''atmosphere'' since the air around us doesn't provided a function to the mobility of phosphorus.
Answer:
The correct answer is- transverse tubules.
Explanation:
Transverse tubules are the membranous channel that extends inward from the muscle cell, these are the actually the addition or extensions of the cell membrane that invade into the center of muscles cells except smooth muscles.
The role of the transverse tubules is to generating the stimulus or signals from the sarcolemma to down in the cell. Sarcolemma are the surface of the cells in muscles.
Thus, the correct answer is - transverse tubules.