A Subject Variable Cannot Be Manipulated

question 44

True/False

A subject variable cannot be manipulated.

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Definitions:

Stomach

A muscular organ in the gastrointestinal tract that breaks down food through mechanical movements and the secretion of acids and enzymes.

Blood Calcium

Refers to the level of calcium in the blood, which is crucial for various physiological functions including bone health, muscle contractions, and blood clotting.

Osteoblasts

Bone-forming cells that turn membrane into bone. They use excess blood calcium to build new bone.

Calcitonin

A hormone secreted by the thyroid gland that helps regulate calcium levels in the blood by inhibiting bone resorption.