"Weightlessness" Occurs When an Object

question 22

Multiple Choice

"Weightlessness" occurs when an object

• A) has zero acceleration.
• B) is in free fall.
• C) is midway between Earth and the Moon.
• D) loses weight.

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Definitions:

Adrenal Cortex

The outer portion of the adrenal gland responsible for producing steroid hormones including cortisol and aldosterone.

Mesoderm

The middle layer of an embryo in early development, which will develop into the muscles, bones, and circulatory system.

Neural Crest Cells

Embryonic cells that give rise to a diverse range of cell types, including neurons, glial cells, and melanocytes.

Tropic Hormone

A type of hormone that primarily affects the function of endocrine glands and regulates the secretion of other hormones.