The monotremes are an unusual group of mammals because they:a
lack mammary glands.
b. lack hair.
c. lay eggs.
d. have pouches.
e. exhibit parthenogenesis.
C
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Most mineral ions that plants need are moved into the ____
a. symplast via active transport b. transmembrane pathway via bulk flow c. apoplast via facilitated diffusion d. symplast via facilitated diffusion e. the apoplast via bulk flow
Which of the following is involved during the process of translation?
a. terminator b. promoter c. ribosomes d. RNA polymerase
Which substance builds up abnormally in Alzheimer's disease?
a. glycogen b. fat c. amyloid protein d. glycolipids e. aminoglycosides
Membrane proteins, like membrane lipids, can move laterally by exchanging positions with other membrane components. Which type of membrane proteins is expected to be the least mobile, based on their function?
(a) channels (b) anchors (c) receptors (d) enzymes