One species of moss in upstate New York produces gametes in May, and another species of moss in the same region produces gametes in June. This is an example of a(n) ________ isolating mechanism
Fill in the blank(s) with correct word
temporal
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The term "potable water" refers to water that is
A. safe to swim in but not drink. B. safe to drink. C. only good for irrigation. D. contaminated with chemicals.
Chemists use the term "organic compounds" to refer to molecules that ________
a. contain the carbonyl or carboxyl functional groups b. are formed entirely of carbon and hydrogen c. contain primarily carbon and hydrogen d. are created only in living organisms
All EXCEPT which of the following are
disadvantages to sociality? a. predator avoidance b. cannibalism c. competition for food d. contagious diseases e. parasite infestation
The mass extinction at the end of the Cretaceous period was likely the result of:
a. rising seawater. b. loss of vegetation. c. extreme predation. d. a dramatic change in climate. e. the appearance of new competitors.