Which of the following statements about kudzu
is false?
a. It was imported from Asia for erosion
control and forage.
b. It was originally introduced into the Pacific
Northwest.
c. It is an exotic species.
d. It grows over most anything stationary in
its path.
e. It is a vine
B
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Which of the following situations would be MOST likely to produce a new species?
A. A group of polyploid individuals arises by an abnormal meioses. The polyploids can only produce viable offspring by mating with each other. B. Several individuals join an existing population and introduce several new, beneficial alleles. C. Several individuals colonize a new area and establish a population. Migration between the two populations is common. D. An existing species becomes subdivided by a glacier and the resulting groups remain physically isolated from each other for thousands of years. When the glacier melts, the two groups are able to interbreed. E. A volcano erupts and kills all of the frogs on an island, along with many other species. New frogs colonize the island and begin reproducing rapidly because there are no longer any frog predators.
The movement of some molecules and ions out of excretory system tubules and back into body fluids is called ____
a. reabsorption b. excretion c. filtration d. secretion e. diffusion
Crossing over is limited to a single occurrence for a chromosome
Indicate whether the statement is true or false.
In summer, a __________ prevents upper and lower
waters from mixing. Fill in the blank(s) with the appropriate word(s).