Examlex
What is a mutagen?
Digestive Tract
A complex series of organs and glands responsible for the digestion and absorption of nutrients, elimination of waste, and food transportation.
Symmetrical Body Plan
A layout of an organism's body parts in a balanced distribution around a central line or point, allowing for the division into mirror-like halves.
Tissues
Groups of cells in an organism that have similar structure and function.
Mantle
In geology, the layer of the Earth between the crust and the outer core; in biology, a tissue that encloses the vital organs of mollusks and secretes the shell.
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