Before Darwin, ____
a. no one had conceived of biological evolution
b. Lamarck wrote about biological evolution, but had the mechanism wrong
c. Malthus developed a theory of evolution
d. Lamarck proposed the idea of natural selection, but was ignored
e. Malthus demonstrated the progression of fossils in sedimentary rocks
ANSWER: b
You might also like to view...
How might a plant cope with the fact that the Calvin cycle uses more ATP than NADPH, yet produces roughly the same amount of both energy intermediates in photosystems I and II?
A. Increase the electrochemical gradient for H+ across the thylakoid membrane, producing more ATP but not NADPH. B. Electron flow rate can be increased, increasing both ATP and NADPH production. C. Plants often increase the amount of NADP reductase, thereby increasing NADPH production to match ATP output. D. More pigment can be rapidly created for greater photosynthetic capacity, producing equal amounts of ATP and NADPH. E. Photosynthesis can revert from a noncyclic to cyclic electron flow, producing more ATP than NADPH.
Sensitivity to allergens
a. may be triggered by stress. b. may be triggered by changes in air temperature. c. may be due to genetic predisposition. d. may be triggered by a and b only. e. may be due to genetic predisposition, and may be triggered by stress and by changes in air temperature.
Organisms such as earthworms and crabs, which dine on small particles of organic matter, are called ____
a. herbivores b. carnivores c. omnivores d. decomposers e. detritivores
In a chemical synapse, what is the name of the gap between the sending and receiving cells?
A) synaptic terminal B) action potential C) synaptic cleft D) myelin sheath