The African country of Nigeria had a 4.55% population growth rate from 2005 to 2010, the highest in the world. Which of the following statements is consistent with this fact?
A) Nigeria's age structure likely looks like a pyramid with a broad base.
B) Nigerian birth rates are likely to be slightly lower than death rates.
C) Nigeria is likely in the first phase of the demographic transition.
D) Nigerian emigration rates are likely higher than immigration rates.
Ans: A) Nigeria's age structure likely looks like a pyramid with a broad base.
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In most species, all mRNA transcripts begin
with
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Which of the following is used to locate a gene
of interest in an established DNA library?
a. a probe b. a vector c. a clone d. a SNP e. a fragment
Which hormone plays a central role in all aspects of plant development and is made mainly in shoot apical meristems and in young leaves?
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