Unit Test- Species & Population

If the gene pool of two populations are separated, the populations may develop into a new species. This is called:

• natural selection

• speciation

• genetic separation

• interspecific competition

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When a species is so rare that it may become extinct it is considered:

• diverse

• endangered

• recovered

• threatened

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Any circumstance that decreases the growth or size of a population is known as ____________.

• a growth factor

• the carrying capacity

• a limiting factor

• the growth rate.

How did the Endangered Species Act affect species of animals such as the American alligator and the American bald eagle?

• It required that animals near extinction be raised in zoos

• It required that paintings and sculptures be made of all extinct species

• It required protection for animals that are near extinction

• It required appropriate hunting fees for animals that are near extinction

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What do we call a population of organisms that can interbreed and reproduce under natural conditions?

• species

• community

• survivorship

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The Kaibab squirrel became its own species when a small population was isolated on the northern rim of the Grand Canyon. Which type of speciation is this?

• behavioral isolation

• mechanical isolation

• temporal isolation

• geographic isolation

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NGSS.HS-LS4-2

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20 different species of galagos, also known as bushbabies, are found in Africa. Even though various species of galagos share habitats, they cannot interbreed with one another because of their differently structured genitalia (reproductive organs). Which type of speciation is this?

• behavioral isolation

• mechanical isolation

• temporal isolation

• geographic isolation

Tags

NGSS.MS-LS4-2

An ecologist is discussing two animals’ ability to reproduce with one another. Which is he talking about?

• natality

• fecundity

• fertility

• mortality

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Which is NOT true about animal species?

• animals of the same species can interbreed and reproduce

• endangered species are in immediate jeopardy of extinction

• individual species are well documented on a central registry

• some species have been protected through trade restriction

Which type of strategists would you expect to have low levels of prenatal care and a short life expectancy?

• K Strategists

• S Strategists

• R Strategists

• J Strategists