Ascomycete yeasts evolved from multicellular ancestors
A. true
B. false
A
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Eukaryotes are ________.
A. often made of prokaryotic cells B. always multicellular C. often multicellular, sometimes unicellular D. always unicellular
The molecule in the accompanying figure is ____, and has ____
a. unsaturated; a carbon-carbon double bond b. saturated; a carbon-carbon double bond c. unsaturated; no carbon-carbon double bonds d. saturated; no carbon-carbon double bonds e. saturated; a carbon-carbon triple bond
Glucagon is produced by the:
a. adrenal cortex b. adrenal medulla c. thyroid d. kidneys e. pancreas
How did researchers test if flatworms could moderate the immune system?
A. exposing white blood cells to flatworm antigens and measuring interleukin-10 concentrations B. exposing white blood cells to dust mite antigens and measuring interleukin-10 concentrations C. exposing white blood cells to flatworm antigens and measuring histamine concentrations D. exposing white blood cells to dust mite antigens and measuring histamine concentrations E. infecting children with flatworms and looking at their number of white blood cells