Recognition or "self" proteins on the surface of your cells are called ____
a. T cell receptors (TCRs)
b. cytokines
c. major histocompatibility complex (MHC) markers
d. complements
e. PAMPs
ANSWER: c
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How many chromosomes and chromatics would a typical human cell have after duplication but before mitosis?
A. 46 chromosomes, 46 sister chromatids B. 23 chromosomes, 23 sister chromatids C. 46 chromosomes, 92 sister chromatids D. 23 chromosomes, 46 sister chromatids
When New York City was given a choice to make regarding its drinking water
A. they opted for more bottled water. B. they chose ecosystem maintenance over development. C. they had to construct expensive filtration plants to protect against disease. D. they chose ecosystem conversion to higher density housing for efficiency. E. they dug new and deeper wells rather than pay for desalinization.
Secondary growth (thickening) arises from __________. Fill in the blank(s) with the appropriate word(s)
What is the function of melatonin?
A. regulate blood glucose levels B. control the color of the skin C. aid in the differentiation of T lymphocytes D. regulate blood calcium levels E. control the daily sleep-wake cycle