True/False
Indicate whether the
statement is true or false.
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1.
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Grass is an example of a biotic factor in a habitat.
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2.
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Immigration is the number of individuals in a specific area.
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3.
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An organism’s specific role in its habitat is called its niche.
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4.
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The struggle between organisms for limited resources is called mutualism.
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5.
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A parasite lives on or inside its predator.
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Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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6.
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Which of the following is NOT a basic need that must be provided by an
organism’s habitat?
a. | food | c. | shelter and protection | b. | water
| d. | entertainment |
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7.
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Which of the following is NOT a biotic factor?
a. | grass | c. | bacteria | b. | sunlight | d. | fungi |
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8.
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Which of the following sequences goes from the simplest level to the most
complex? Hint
a. | population, ecosystem, community
| c. | community, ecosystem,
population | b. | community, population, ecosystem
| d. | population, community, ecosystem
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9.
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A living thing.
a. | organism | c. | biotic factor | b. | habitat | d. | Abiotic Factors |
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10.
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An environment that provides the things an organism needs to live, grow, and
reproduce.
a. | species | c. | population | b. | habitat | d. | ecosystem |
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11.
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A living part of an organism’s habitat.
a. | population | c. | biotic factor | b. | community | d. | abiotic factor |
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12.
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A nonliving part of an organism’s habitat.
a. | ecology | c. | biotic factor | b. | habitat | d. | abiotic factor |
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13.
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The process in which organisms use water along with sunlight and carbon dioxide
to make their own food.
a. | photosynthesis | c. | breathing | b. | respiration | d. | digestion |
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14.
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A group of organisms that are physically similar and can mate with each other
and produce offspring that can also mate and reproduce.
a. | organism | c. | population | b. | species | d. | community |
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15.
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All the members of one species in a particular area.
a. | community | c. | population | b. | ecosystem | d. | ecology |
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16.
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All the different populations that live together in an area.
a. | population | c. | ecosystem | b. | species | d. | community |
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17.
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The community of organisms that live in a particular area along with their
nonliving surroundings.
a. | ecosystem | c. | community | b. | habitat | d. | population |
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18.
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The study of how living things interact with each other and their
environment.
a. | ecology | c. | botany | b. | biology | d. | zoology |
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19.
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Suppose a population of 100 mice has produced 600 young. If 200 mice have died,
how many mice are in the population now? (Assume for this question that no mice have moved into or
out of the population for other reasons.)
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20.
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Which of the folowing is a limiting factor for population?
a. | Food | c. | Space | b. | Water | d. | All of the
above |
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21.
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An approximation of a number, based on reasonable assumptions.
a. | estimate | c. | death rate | b. | birth rate | d. | immigration |
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22.
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The number of births in a population in a certain amount of time.
a. | emigration | c. | death rate | b. | immigration | d. | birth rate |
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23.
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The number of deaths in a population in a certain amount of time.
a. | birth rate | c. | death rate | b. | immigration | d. | emigration |
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24.
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Moving into a population.
a. | population density | c. | emigration | b. | immigration | d. | death rate |
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25.
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Leaving a population.
a. | population density | c. | immigration | b. | emigration | d. | death rate |
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26.
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The number of individuals in a specific area.
a. | community | c. | carrying capacity | b. | limiting factor | d. | population
density |
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27.
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Something in the environment that causes a population to decrease.
a. | limiting factor | c. | birth rate | b. | immigration | d. | abiotic factor |
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28.
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The largest population that an area can support.
a. | carrying capacity | c. | habitat | b. | community | d. | population
control |
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29.
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A prairie dog, a hawk, and a badger all are members of the
same
a. | niche. | c. | community. | b. | species. | d. | population. |
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30.
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All of the following are examples of limiting factors for populations
except
a. | space. | c. | time. | b. | food. | d. | weather. |
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31.
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In which type of interaction do both species
benefit?
a. | predation | c. | commensalism | b. | mutualism | d. | parasitism |
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32.
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Which of these relationships is an example of parasitism?
Hint
A. B.
C. D.
a. | a bird setting on a branch | c. | a flea living on a cat’s
blood | b. | a bat pollinating a saguaro cactus | d. | ants protecting a tree that produces the
ants’ only food |
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33.
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The series of predictable changes that occur in
a community over time is called
a. | natural selection. | c. | commensalism. | b. | ecology. | d. | succession. |
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34.
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Which of the following is an abiotic factor you might find in a forest
ecosystem.
a. | trees | c. | mice | b. | birds | d. | sunlight |
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