In the electron-transport chain in chloroplasts, ________-energy electrons are taken from __________
(a) high; H2O.
(b) low; H2O.
(c) high; NADPH.
(d) low; NADPH.
(b)
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Which one of the following animals would most likely be defined as a keystone species?
A) sea otter B) housefly C) fathead minnow D) nauplii (a species of zooplankton)
the figure above to answer questions 12–14
E 12. A body plan lacking a body cavity is indicated by a. A. b. B. c. C. d. A and B. e. none of these.
Photosynthesis produces carbon dioxide and oxygen.
a. true b. false
If one was estimating a simple regression of Earnings (Y) on Height of individuals (X), and got a coefficient on the Height variable of 30, what would the coefficient on Height be if you added 3 inches to every individual in the sample but kept their earnings the same?
A. Above 30 B. Below 30 C. 30 D. Not enough information.