Which neurotransmitter functions to elevate mood?

a. acetylcholine
b. epinephrine
c. dopamine
d. serotonin
e. GABA


ANSWER: d

Biology & Microbiology

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Addison's disease is a disorder of the adrenal glands which can progress to a severe illness which may include very low blood pressure and coma. Addison's disease is a disease of which organ system?

A. Circulatory system B. Respiratory system C. Integumentary system D. Endocrine system

Biology & Microbiology

__________ arranged organisms into a scale of nature and first stated that organisms changed toward

the more complex and perfect. a. Dobzhansky b. Lamarck c. Erasmus Darwin d. Charles Darwin e. Aristotle

Biology & Microbiology

To control the cell cycle:a

the activity of Cdks stays the same throughout the cell cycle. b. cyclins fluctuate during the cell cycle. c. Cdks are active only when they are released from cyclins. d. the anaphase-promoting complex stimulates DNA replication. e. M-Cdk inhibits mitosis.

Biology & Microbiology

Your family is taking a long driving vacation across the midwestern and western United States. As you travel, you notice that the flowers, birds, and trees of the Midwest and the Rocky Mountains are very different. As you ponder why, you remember that such differences in the distribution of species are part of the field of ______.

a. biogeography b. geology c. morphology d. paleontology

Biology & Microbiology