Which of the following is found in cocoa?
a. Epicatechin.
b. Caffeine.
c. Resveratrol.
d. Curcumin.
e. Nicotine.
A
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In order for bilayers to form spontaneously, the pH of the solution should be:
A. highly acidic. B. moderately acidic. C. approximately neutral. D. moderately basic. E. highly basic.
The Calvin-Benson cycle starts when ____
a. light is available c. electrons leave a photosystem II b. carbon dioxide is attached to RuBP
A characteristic that is shared by snakes and birds is ________
A) being ectothermic B) the presence of only a single ovary in females C) the amniotic egg D) being endothermic
A biologist discovers two populations of wolf spiders whose members appear identical. Members of one population are found in the leaf litter deep within a woods. Members of the other population are found in the grass at the edge of the woods. The biologist decides to designate the members of the two populations as two separate species. Which species concept is this biologist most closely utilizing?
A) ecological B) biological C) morphological D) paleontological E) phylogenetic