What is the primary advantage of having multiple mating type alleles?
A. There is an increased probability that an
encounter between two fungi will involve
compatible mating types.
B. More spores can be produced during
sexual reproduction.
C. More diversity can be achieved through
self-fertilization.
D. There is no need to produce chemical
signals to attract a mate.
E. Fungi can more easily switch between
sexual and asexual reproduction.
A
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Mason and Clark concluded that starlings who decorated their nests with wild carrot sprigs did so as an adaptation responding to ________
a. competition for mates b. wild carrot as a nutritious source of food c. the need to camouflage nests from nestling-eating ravens d. parasitism of the brood by bloodsucking mites
Flowers:
a. Are structures of plants that are only ornamental and have no reproductive value in plants b. Produce both pollen and egg cells c. Produce pollen only d. Produce egg cells only e. Are produced by both gymnosperms and angiosperms
Chemical mediators secreted by cells to attack white blood cells to the site of inflammation are called ___________.
Fill in the blank(s) with the appropriate word(s).
The direct effect more commonly occurs than the indirect effect.
a. true b. false