Smooth muscles depolarize as a result of a transmembrane current of Calcium ions. When an action potential depolarizes the muscle cell membrane, it also travels into the body of the cell via the t-tubules. Unlike skeletal muscle, smooth muscle is dependent in two sources of calcium in order to intiate contraction. These two sources are calcium sequestered in the S.R. of the smooth muscle cell.
Answer:
The correct answer is C. differentiation.
Explanation:
Cell differentiation is a process via which generic embryonic cells are transformed into specialized cells through a process of gene expression. Certain signals from inside and outside our body initiates gene expression.
Cell differentiation occurs at various stages of development, which causes the size and the shape of the cell to change dramatically.
Importance of cell differentiation:
- Plays vital role in embryonic development
- Helps in developing organisms throughout their life
Answer:
water is evaporated into the air then the water molecules get too heavy and come back down as snow/rain/ect
