Answer:
Species distribution is the manner in which a biological taxon is spatially arranged. ... Species distribution is not to be confused with dispersal, which is the movement of individuals away from their region of origin or from a population center of high density.
False, the Arctic National Wildlife Refuge can not provide us with nearly on hundred years worth of oil.
A , a different form of DNA containing
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.
