If you hit your head hard possibly. if just playing and running no.
The typical cell types found in connective tissue: fibroblast Mast cells plasma cells macrophages, adipocytes leukocytes
AB- is the blood type that is least common and 0+ is the most common
There are several mutations that benefit the organism.A well known example is the antibiotic resistance developed by bacteria, which aid in their survival even when they are exposed to a given antibiotic. A single gene mutation in wild almond trees resulted in a variety that no longer synthesizes amygdalin.