Abiogeochemical cycle is a. a cycle that cells use to produce energy. b. a cycle that moves material through biotic and abiotic parts of the environment. c. a cycle that shows how animals cause erosion. d. a cycle that describes the formation of minerals beneath the earth's crust.

B. a cycle that moves material through biotic and abiotic parts of the environment.

Explanation:

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a motor homunculus represents a map of brain areas dedicated to motor processing for different anatomical divisions of the body.

homunculus represents the importance of various parts of your body as seen by your brain. as a result, they take up a lot of brain space. although the cortical homunculus is a curiosity, penfield's work in mapping the brain's relationship to the body was invaluable.