Imagine a chart showing the number of people in different age groups (0 to 5 years old) as blocks in proportion to the number of people in each age group. If each of these age blocks is shown stacked with the youngest at the bottom and the oldest at the
top, what shape will the whole stack assume when there is a rapid population doubling time?
A) inverted pyramid B) expanding pyramid
C) uniform column D) hourglass
Answer: B
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Simple sequence repeat loci are highly variable because of what process?
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__________ cause habitat loss, degradation of habitat, and habitat fragmentation, all of which can
endanger the __________ species. Fill in the blank(s) with the appropriate word(s).
The region at the tip of arrow “C” is used for
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