One characteristic of a species that is likely to become extinct is
A. being invasive.
B. requiring a small territory.
C. having a high reproduction rate.
D. being a generalist.
E. having a specialized niche.
Answer: A
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Lobsters are consumers in aquatic ecosystems.
Answer the following statement true (T) or false (F)
?One factor limiting the usefulness of epidemiological studies is the fact that, in many cases, too few people have been exposed to high enough levels of a toxic agent to detect statistically significant differences.
Answer the following statement true (T) or false (F)
Which statement about deserts is most accurate?
A)Evaporation exceeds precipitation in arid and semi-arid regions. B)Loess deposits are common in deserts. C)The geologic process at work in deserts are vastly different from those at work in humid regions. D)Deserts do not have seasons, and they are uniformly hot year-round. E)Deserts occur where atmospheric pressure is low.
Which of the following describes the relative humidity when wet haze can form?
A. as low as 50% B. as low as 75% C. as low as 10% D. as low as 25%