In Differentiation,iron-Rich Materials Float to the Surface of a Planet

question 55

True/False

In differentiation,iron-rich materials float to the surface of a planet and the silicon-rich materials sink to the center.

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Definitions:

Dendrites Function

The role of dendrites is to receive electrical signals from the axons of other neurons, aiding in the transmission of neural messages.

Glia

A type of cell in the nervous system long believed to provide a “support” function for neurons; recent research indicates that glia provide many other functions as well.

Brain Cell

A generic term for cells within the brain, including neurons, which transmit information, and glial cells, which provide support and nutrition to neurons.

Efferent Nerves

Nerves that carry signals away from the central nervous system to effectors (muscles or glands), eliciting a response.