Organisms That Can Survive on Carbon Dioxide as Their Principal

question 89

Multiple Choice

Organisms that can survive on carbon dioxide as their principal carbon source are called ______.

• A)autotrophs
• B)heterotrophs
• C)chemotrophs
• D)phototrophs
• E)externotrophs

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Definitions:

Dopamine

A neurotransmitter and hormone involved in several key functions within the brain and body, including movement, motivation, reward, and the regulation of mood.

Adiponectin

A protein hormone produced and secreted by adipose cells that regulates glucose levels as well as fatty acid breakdown.

Calcitonin

A hormone secreted by the thyroid gland that rapidly lowers the calcium content in the blood.

Oxytocin

Hormone secreted by the hypothalamus and released by the posterior lobe of the pituitary gland; stimulates contraction of the pregnant uterus and the ducts of mammary glands.