According to the Nebular Hypothesis, the Solar System Began as

question 17

Multiple Choice

According to the nebular hypothesis, the solar system began as

• A) a rapidly rotating sun.
• B) a cloud of dust and gas.
• C) a cloud containing approximately equal amounts of all naturally occurring elements.
• D) two comets that collided with a tremendous impact.
• E) a vast area of totally empty space.

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Definitions:

Arrector Pili

Small muscles attached to hair follicles in mammals, contraction of which causes the hair to stand upright, producing goosebumps.

Hair Follicle

The skin organ that produces hair, consisting of a shaft, root, and bulb, and is connected to sebaceous glands.

Sebaceous Gland

Gland of the skin, usually associated with a hair follicle, that produces sebum.

Eccrine Sweat Gland

A type of sweat gland that is found all over the body, particularly on the palms, soles, and forehead, and is primarily involved in temperature regulation.