Examlex
Choose three different biological theories of aging and provide a brief description of each.
Connective Tissue
Tissue that supports, binds together, or separates other tissues or organs, often containing collagen or other fibers.
Muscle Tissue
A body tissue that contracts to produce movement, including skeletal, smooth, and cardiac muscle types.
Capillary Walls
The thin, permeable walls of capillaries, the smallest blood vessels, which allow for the exchange of oxygen, carbon dioxide, nutrients, and waste between blood and surrounding tissues.
Amphibian Heart
The amphibian heart is made up of three chambers: two atria and one ventricle, supporting a dual circulatory system that separates oxygen-rich and oxygen-poor blood.
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