The age structure diagram of a human population in a developed country like Sweden, which has a population growth rate near zero and in which neither the birth rate nor the death rate has changed much in the recent past, has the shape of
A) an hourglass.
B) a pyramid.
C) a rectangle tapering near the top.
D) a funnel.
E) a triangle with the point at the bottom.
Ans: A) an hourglass.
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How are species-area relationships traditionally plotted?
A. on a log-linear plot B. on a bar graph. C. on a log-log plot D. on a linear plot E. as a function of distance
What would happen to immunoglobulin genes if alternative mRNA splicing was nonfunctional?
A. Transcripts would contain a single V region only. B. Transcripts would contain all possible V, D, J, and constant regions. C. Transcripts would have extra V, D, and J segments attached to a single constant region. D. Transcripts would have single V and D segments, but extra J segments and constant regions. Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about mRNA splicing? What other information is related to the question? Choose Answer Given what you now know, what information is most likely to produce the correct answer? Reflect on Process Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Most of the bacterial genomes described in the text have fewer than ________
A) 500 genes B) 5000 base pairs C) 50 genes D) 10,000 genes E) 10,000 base pairs
Match the protist with the supergroup it belongs in
Entamoeba A) Amoebozoa B) Excavata C) Chromalveolata D) Archaeplastida