Evolution Test Review : Question Preview (ID: 14454)

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Variation happens randomly in a population, which means:
a) it is not something caused by the organism on purpose b) organisms change what they look like on purpose c) organisms blend in with their surroundings d) all members of a population look exactly alike
An example of variation is the following:
a) A dog and a cat that both have stripes b) Some of an insect’s offspring have spots, and some are one color c) I am wearing grey pants and you are wearing brown pants d) Most polar bears are white
Adaptations always depend on the _____________in which the organism lives.
a) Environment b) House c) Niche d) Street
Over time, the available nutrients in the soil of one ecosystem decreases. Which adaptation is most likely to develop in the plant species that live in that soil?
a) taller plants b) plants with deeper roots c) plants with bigger flowers d) plants that demand less water
A cactus plant is adapted to living in desert biomes. The desert is the catus’ ___________________.
a) mutation. b) natural trait. c) evolutionary tree. d) environment.
When a member of a population has a helpful variation, it is able to:
a) survive and reproduce b) live and die c) make a living d) change its surroundings
Evolution usually happens over ______________________________ of years.
a) tens b) hundred c) millions d) trillion
Which statement represents the major concept of the biological theory of evolution?
a) A new species moves into a habitat when another species becomes extinct. b) Every period of time in Earth’s history has its own group of organisms. c) Present-day organisms on Earth developed from earlier, distinctly different organisms. d) Every location on Earth’s surface has its own unique group of organisms.
According to the theory of natural selection, why are some individuals more likely than others to survive and reproduce?
a) Some individuals pass on to their offspring new characteristics they have acquired during their life b) Some individuals are better adapted to exist in their environment than others are. c) Some individuals do not pass on to their offspring new characteristics they have acquired during the d) Some individuals tend to produce fewer offspring than others in the same environment.
Which situation would most likely result in the highest rate of natural selection?
a) reproduction of organisms by an asexual method in an unchanging environment b) reproduction of a species having a very low mutation rate in a changing environment c) reproduction of organisms in an unchanging environment with little competition and few predators d) reproduction of organisms exhibiting genetic differences due to mutations and genetic recombinations
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