Which of the following best illustrates the process of evolution?

Which of the following best illustrates the process of evolution?

a. a lizard's color becomes brown as it sits on a log
b. a polar bear follows prey to warmer latitudes and is able to survive
c. a plant loses its leaves in a drought
d. a population of mosquitoes develops resistance to a pesticide over several generations
e. a population of fozes increases as more prey becomes available



Answer: d

Which of these is NOT a good strategy for making a city more sustainable?

Which of these is NOT a good strategy for making a city more sustainable?

a. compact development
b. maximizing urban green space
c. curbside recycling programs
d. efficient means of public transportation
e. tax incentives for living in rural zip codes



Answer: e

Which of the following statements regarding urbanization trends is true:

Which of the following statements regarding urbanization trends is true:

a. as of 2008, one third of the worl'd population lives in urban areas
b. most urban growth in the world is occurring in developing countries
c. cities in developing nations tend to have more females while cities in highly developed countries often have a higher ratio of males to females
d. urbanization in developed countries is increasing more rapidly than in developing countries
e. both a and b


Answer: b

Greenhouse gases increase ocean temperature, leading to more evaporation/clouds, Which leads to cooling of the earth's surface by reflection of solar radiation. this is an example of a:

Greenhouse gases increase ocean temperature, leading to more evaporation/clouds, Which leads to cooling of the earth's surface by reflection of solar radiation. this is an example of a:

a. closed system
b. negative feedback mechanism
c. dynamic equilibrium
d. positive feedback mechanism
e. steady state



Answer: b

Which of the following is an area where primary succession could occur?

Which of the following is an area where primary succession could occur?

a. a forest devastated by a tornado
b. a forest that has been clear-cut
c. an area that was recently burned
d. an area recently covered by glaciers
e. all of the above



Answer: d

A population is defined as:

A population is defined as:

a. organisms that live together
b. organisms of the same species that live in the same area at the same time
c. a croup of similar organisms whose members interbreed with one another
d. all of the organisms that live together in an area, plus the physical environment that they live in
e. all organisms at a given trophic level within a particular community



Answer: b