The crest Is the highest point of the wave.
Jean-Baptiste Lamarck is the researcher who developed the theory
of use or disuse, also called the theory of acquired characteristics. Jean-Baptiste Lamarck is a French biologist, Lamarck
founded a school of French Transformationism which included Étienne Geoffroy
Saint-Hilaire, and which corresponded with a radical British school of anatomy
based in the extramural anatomy schools in Edinburgh, Scotland, which included
the surgeon Robert Knox and the comparative anatomist Robert Edmond Grant.
Answer:
Because they don't have a nucleus which houses DNA and no RNA. These are require to repair cells whenever damage is done. Since these are absent, the cell can only survive 120 days if minimal injuries.
A platelets aren't formed until vessel damages occurs <span />
