The Source of Energy for a Contracting Protostar Comes From

question 88

Multiple Choice

The source of energy for a contracting protostar comes from:

• A) thermonuclear energy
• B) kinetic energy
• C) chemical energy
• D) gravitational potential energy
• E) radiation energy

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Definitions:

Red Blood Cells

Blood cells that carry oxygen from the lungs to the body tissues and carbon dioxide back to the lungs.

Lymphocytes

A type of white blood cell that is part of the immune system, involved in protecting the body against both infectious disease and foreign invaders.

Hormones

Chemical messengers produced by endocrine glands that regulate various bodily functions by traveling through the bloodstream to target organs.

Complement

Group of serum proteins that stimulates phagocytosis and inflammation.