Assume that several members of a particular species of mosquito inadvertently entered an airplane in Asia and were transported to the United States, where they thrived as an isolated colony. What is likely to occur over time?
a. The isolated species will breed with closely related species in the United States, forming a new species.
b. The species undergo sympatric speciation.
c. The colony could genetically diverge in isolation and a new species could be formed.
d. Genetic divergence of the population would eventually cease.
e. Isolation would encourage extinction.
Ans: c. The colony could genetically diverge in isolation and a new species could be formed.
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The _____ value indicates the probability that differences between the observed values and the expected values are due to random chance alone
A. P value B. Goodness of fit C. Degrees of freedom D. Empirical approach E. None of the answers are correct
How do the pyramids of biomass for Silver Springs, Florida, and the English Channel compare?
a. They are both typical of most ecosystems. b. They both indicate that producers are quickly eaten by herbivores. c. The pyramid for Silver Springs is typical of most ecosystems and the English Channel pyramid indicates that producers are quickly eaten by herbivores. d. The pyramid for Silver Springs indicates that producers are quickly eaten by herbivores, and the English Channel pyramid is typical of most ecosystems. e. Both pyramids indicate overgrowth of producers.
Molecular, biochemical, cellular, and morphological evidence supports the view that bryophytes are a
monophyletic group.
Indicate whether the statement is true or false.If peach trees growing in specific mild climates of the southern United States do not receive about 850 hours of
temperatures below 40 degrees, they will not produce flowers in the spring. This is explained by which of the following terms?
a. photoperiodism b. phototropism c. senescence d. vernalization e. dormancy