1. In which of the following pairs do both organisms belong to the same population?

• A) a rose and a carnation

• B) a zebra and a horse

• C) two residents of New York City

• D) two similar species of monkey

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2. Which of the following populations has a random dispersion?

• A) herd of sheep

• B) clover in a field

• C) school of fish

• D) mountain lion

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3.The growth rate of a population of geese will probably increase within a year if __________.

• A) more birds die than are hatched• B) several females begin laying eggs at a younger

age• C) most females lay two eggs instead of three

during a nesting season• D) some birds get lost during migration.

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4. Which factor contributed the most to the exponential growth of the human population?

• A) higher fertility rates

• B) more food, better hygiene

• C) increased immigration

• D) higher birth rates

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5. A population will most likely deplete the resources of its environment if the population

• A) must share resources with many other species.

• B) moves frequently from one habitat to another.

• C) grows beyond carrying capacity.

• D) has a low reproductive potential.

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6. Which of the following would cause a population to decrease in a region.

• A) increased survivorship

• B) increased fertility rates

• C) decreased emigration

• D) decreased immigration

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7. Which of the following is an example of coevolution?

• A) wolves that compete with each other for territory

• B) bacteria that suddenly mutate in a lab• C) flowers that can be pollinated by only one

species of insect• D) rabbits that invade a new habitat

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8. Which of the following has the highest reproductive potential?

• A) spiders

• B) bacteria

• C) polar bears

• D) cats

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9. An example of a population is

• A) all the animals in the pond

• B) all the plants and animals in the pond

• C) all the bass in the ponds of Maryland and Pennsylvania

• D) all the bass in a pond

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10. Which countries have Type I survivorship?

• A) the most developed countries

• B) the least developed countries

• C) countries in the second stage of demographic transition

• D) countries in the first stage of demographic transition

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11. In this century, the world population is likely to

• A) remain the same.• B) continue to grow

exponentially.• C) stabilize after fertility rates

fall below replacement level.• D) decline rapidly because

fertility rates are below replacement level.

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12. Educating women worldwide has lowered birthrates partly because

• A) educated women are stay-at-home moms.

• B) educated women use family planning techniques.

• C) educated women bear many children to ensure some will survive.

• D) all of the above

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13. An example of a cause of death that is density independent is

• A) disease.

• B) predation.

• C) earthquakes.

• D) limited resources.

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14. When a resource is consumed at the same rate at which the ecosystem produces the

resource, it is called the

• A) final resource.

• B) carrying resource.

• C) capacity resource.

• D) limiting resource.

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15. A tree has moss growing on its bark. This relationship is known as

• A) predation.

• B) commensalism.

• C) mutualism.

• D) competition.

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