They are used to define periods Geological time.
The answer is B
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Answer: When cell cycle is not controlled, it leads to still alive older cells and newly formed younger cells growing along with each other resulting in a tumor which is malignant, that is cancer. This can happen due to many factors as a result of genetic mutations.
Explanation:
Answer:
Adolesence is the period following puberty where one develops from a child to an adult. They changes that occur are involved with puberty and include growth of sexual organs, menstruation, and an assortment of chemical changes in the brain. It typically occurs from age 9 throughout the teenage years.
