Which of the following will readily pass through the phospholipid bilayer?
a) amino acids
b) carbon dioxide
c) glucose
d) none of the above
Answer: b) carbon dioxide
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Horizontal gene transfer is limited to between prokaryotic bacteria of the same species
Indicate whether the statement is true or false
Which of the following is NOT a characteristic
of type 2 diabetes?
a. pancreatic islet cells are destroyed b. onset of symptoms typically begins in middle age c. obesity is a big risk factor d. diet and exercise can help control it e. all of these are characteristics of type 2 diabetes
In an anatomy lab, you are shown a skeleton from a sea cucumber, with its internal calcium-rich spines. You would call this a(n)
A. exoskeleton. B. hydrostatic skeleton. C. gastrovascular cavity. D. endoskeleton. E. vascular canal.
Why do woodland star flowers likely abort flower heads with Greya moths in geographic locations where other nonflower-feeding pollinators are present?
a. Greya moths do not pollinate woodland stars in locations with multiple pollinators. b. Pollination by Greya is no longer essential for the reproduction of woodland stars. c. Pollen becomes limited and woodland stars can no longer afford to lose seed to Greya larvae. d. B and C.