The inability of bees to pollinate the flowers of
certain sage plants is an example of
a. temporal isolation.
b. hybrid inviability.
c. mechanical isolation.
d. gamete mortality.
e. behavioral isolation.
Answer: c
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Water is capable of dissolving many substances including salt and sugar. Water can be described as which of the following?
a. solute b. solution c. solvent d. ionic compound
Differences among species may relate to adaptation for the ability to exploit a certain environment or range of resources independent of competition
Indicate whether the statement is true or false
The ability to smell ____
a. manifests as a 1:1 relationship between an odor and a specific receptor b. specific chemicals can indicate a possible reaction to a chemically related drug c. specific chemicals will predict the effectiveness of antidepressants d. is mediated by a family of about 400 genes e. is mediated by the synthesis of olfactory receptors in the brain
In the successional sere on abandoned fields in the Piedmont of North Carolina, self-inhibition is a common mechanism determining the course of community development. In which of the following species is self-inhibition caused by growth inhibitors produced by decaying roots?
A) horseweed B) aster C) pine D) all of the above