Question

1. in a certain east Asian nation, there are more middle-aged people than toddlers. this fact suggests that the growth rate of the nation's population has been

A. increasing

B. decreasing

C. constant

D. zero

2. observed change in population size of snowshoe hares is correlated with change in

A. the population size of the shrubs that hares feed on

B. the population size of the lynxes that prey on hares

C. the frequency of sunspots, or solar flares

D. none of the above

3. In general, the dispersion pattern of human populations tends to be

A. uniform

B. clumped

C. random

4. In January, a pregnant rabbit accidentally rafted to an island with lots of grass but no large herbivores of predators. Over the following year, the rabbit population on this island increases. You should expect the rabbit population growth rate on this island to be highest in the following

A. march

B. may

C. july

5. According to Darwin's theory, evolution results from

A. nonrandom genetic variation and random selection

B. nonrandom genetic variation and non-random selection

C. random genetic variation and random selection

D. random genetic variation and non-random selection

Answer 1