All of the members of an interbreeding group of organisms in a local area make up a(n)
A. race.
B. population.
C. ecosystem.
D. community.
Answer: B
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Horizontal gene transfer between individuals in a population, while not a mutation, is a source of genetic variation
Indicate whether the statement is true or false
An example of an ecosystem “good” is __________, and an example of an ecosystem
“service” is __________.
a. cleansing of air; cleansing of water b. food; storage of minerals c. storage of minerals; food d. tourism; medicines
Which of the following is a function of the glycocalyx?
A) to aid in adhering to the cell's environment B) to aid in preventing phagocytosis from cells that might engulf the bacterium C) formation of biofilms D) all of the above
Chordates can be characterized as having
A. bilateral symmetry. B. a notochord. C. a nerve cord. D. All of the choices are correct.