Answer:
Genetic mutations causing the malfunction or absence of one or more of the regulatory proteins at cell cycle checkpoints can result in the "molecular switch" being turned permanently on, permitting uncontrolled multiplication of the cell, leading to carcinogenesis, or tumor development.
Explanation:
Answer:
your spit is one of them too
Explanation:
they're not really but considering your fresh pee is 10x less dirty than a spit I'm considering.
The correct answer is:
C. Four food groups
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2nd level- walking
3rd- weight training
4th- soccer
