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In countries where the number of children younger than 15 is approximately equal to the number between ages 15 and 45, the population is
Q8: In the temperate rain forest, the establishment
Q13: In his 1961 paper ʺThe Paradox of
Q22: How many tissue layers are in the
Q26: A complex, interrelated network of organisms and
Q26: Birds belong to a related group of
Q30: A toad avoiding bad-tasting insects is an
Q81: Two species that have a high degree
Q91: Density-dependent factors become more effective at limiting
Q102: Certain bacteria and fungi that are important
Q115: A shark is a(n)<br>A) invertebrate chordate.<br>B) jawless