The flattening of the action potentials of myocardial contractile cells, called the plateau phase, is due to a combination of K permeability and Ca2 permeability.

most community's take hundreds of years to become stable

an organism's phenotype is the  form of a trait  that it  displays. for  flowercolor, a pea  plant  can  display  a phenotype of purple or white flowers. an organism's  genotype  is the alleles of a gene it contains. based on his data, mendel concluded that a phenotype can be  determined  by more than one  genotype.

population. population is the number of people or animals in a particular place. an example of population is over eight million people living in new york city.

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