Examlex
The head of a sperm cell contains the ____________________, the mitochondria provide ____________________, and the flagellum provides ____________________.
Wear-And-Tear Theory
A concept suggesting that the body ages as a result of accumulated damage and degradation of cells and tissues over time.
Variable-Rate Theories
Theories that explain biological aging as a result of processes that involve damage to biological systems and that vary from person to person.
Environmental Assaults
External factors or actions that cause harm or damage to the environment and living organisms.
Free Radicals
Unstable atoms or molecules that can damage cells, contributing to aging and various diseases, caused by environmental factors and normal metabolic processes.
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