Ramalina lichens are damaged by nitrates
a. True
b. False
ANSWER: True
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Growth poles
A) work as part of government policies to encourage cumulative causation. B) emerge through the forces of supply and demand. C) succeed based on the concept of comparative advantage. D) rely on the international division of labor. E) are a consequence of core-periphery relations.
Epidermolysis bullosa is an inherited disorder caused by mutations in the structural proteins of the ________
a. skin b. muscles c. heart d. brain
What is the tendency for plants that live on other plants (epiphytes) to send shoots upward while sending roots down toward the ground?
A) positive and negative gravitropism B) positive and negative thigmotropism C) negative and positive gravitropism D) negative and positive thigmotropism
Which postzygotic barrier do mules illustrate?
a. temporal isolation b. hybrid inviability c. hybrid breakdown d. gametic isolation e. hybrid sterility