The answer is <span>Gap Junction
Gap junction is a small gap between the cells that used to transmit signall to the cells. This gap will allow the heart muscle to be activated in unison. Coordinated contractions are important for heart muscle because it creates the force that needed to pump the blood.</span>
During DNA replication, the two strands separate as the hydrogen bonds connecting the parent strands are broken by an enzyme called helicase. In the DNA molecule (double strand) complementary bases are joined by hydrogen bonds; that is; Adenine paired to thyamine and guanine to cytosine; during replication the enzyme helicase separates the double helix by breaking the hydrogen bonds between the complementary bases.
Osmosis is the diffusion of water molecules only through a membrane
During the phase of anaphase, each pair of chromosomes separate into two identical, independent chromosomes.
During the last phase of telophase the sisters chromatids reach opposite pole. The small nuclear vesicles in the cell begin to re-form around the group of chromosomes and at each end. Hope it helped :)
The epidermis is the top layer of skin!