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6th Grade Science
Chapter 14 Interaction
s of Life
Review Questions
Zambia’s South Luangwa National Park
1. ______ is anything that restricts the number of individuals in a population.
a. limiting factor c. carrying capacity
b. community d. population
Answer:
Limiting factor
Chapter 14Review Questions
Answer:
community
Chapter 14Review Questions
2. ______ is all the populations in an ecosystem.a. limiting factor c. carrying capacity
b. community d. population
3. All of the organisms in an ecosystem that belong to the same species is called a ______ .a. limiting factor c. carrying capacityb. community d. population
Answer:
population
Chapter 14Review Questions
4. The largest number of individuals of one species that an ecosystem can support over time is called _______.a. limiting factor c. carrying capacityb. community d. population
Answer:
carrying capacity
Chapter 14Review Questions
5. ______ is the part of the Earth that supports life.a. biosphere c. ecosystemb. habitat d. ecology
Answer:
biosphere
Chapter 14Review Questions
6. _______ is the place which an organism lives.a. biosphere c. ecosystemb. habitat d. ecology
Answer:
habitat
Chapter 14Review Questions
7. _______ is the study of interactions among organisms and their environment.a. biosphere c. ecosystemb. habitat d. ecology
Answer:
ecology
Chapter 14Review Questions
8. All of the living organisms in an area and the nonliving features of their environment is called a(n)_______.a. biosphere c. ecosystemb. habitat d. ecology
Answer:
ecosystem
Chapter 14Review Questions
9. _____ are organisms that cannot make their own food.a. symbiosis c. nicheb. produces d. consumer
Answer:
consumer
Chapter 14Review Questions
10. An organisms’ ______ is how it survives, and finds food and shelter.a. symbiosis c. nicheb. produces d. consumer
Answer:
niche
Chapter 14Review Questions
11. _____ are organisms that use an outside energy source, such as the sun, to make energy-rich molecules.a. symbiosis c. nicheb. produces d. consumer
Answer:
producers
Chapter 14Review Questions
12. _____ are organisms that cannot make their own food.a. symbiosis c. nicheb. produces d. consumers
Answer:
consumers
Chapter 14Review Questions
13. A symbiotic relationship in which both species benefits is called ______.a. parasitism c. commensalismb. mutualism d. ecosystem
Answer:
mutualism
Chapter 14Review Questions
14. A symbiotic relationship in which one species benefits and the other is not affected is called ______.a. parasitism c. commensalismb. mutualism d. ecosystem
Answer:
commensalism
Chapter 14Review Questions
15. A symbiotic relationship in which one species benefits and the other is harmed is called ______.
a. parasitism c. commensalism
b. mutualism d. ecosystem
Answer:
parasitism
Chapter 14Review Questions
16. ______ takes place when more than one organism seeks the same resource at the same time.a. Carrying capacity c. Competitionb. Population density d. Population growth
Answer:
Competition
Chapter 14Review Questions
17. ______ is the number of individuals per unit area.a. Carrying capacity c. Competitionb. Population density d. Population growth
Answer:
Population density
Chapter 14Review Questions
18. Competition limits ______.a. population size c. competitionb. population density d. population growth
Answer:
population size
Chapter 14Review Questions
Answer:
decomposers
19. ______ help recycle once-living matter by breaking it down into simple, energy-rich compounds.
a. producers c. decomposers
b. consumers d. parasites
Chapter 14Review Questions
20. A ______ is a model of the feeding relationships among organisms in a ecosystem.a. community c. biosphereb. habitat d. food chain
Answer:
Food chain
Chapter 14Review Questions
21. Consumers that eat only plants are called _____.
a. carnivores c. omnivores
b. herbivores d. decomposers
Answer:
herbivores
Chapter 14Review Questions
22. _____ are animals that eat other animals.
a. carnivores c. omnivores
b. herbivores d. decomposers
Answer:
carnivores
Chapter 14Review Questions
23. ______ eat most mostly plants and animals.
a. carnivores c. omnivores
b. herbivores d. decomposers
Answer:
omnivores
Chapter 14Review Questions
24. _____ consume wastes and dead organisms.a. carnivores c. omnivoresb. herbivores d. decomposers
Answer:
decomposers
Chapter 14Review Questions
25. An example of a nonliving feature of an environment is ______.
a. a raspberry bush c. a bear
b. water temperature d. a salamander
Answer:
water temperature
Chapter 14Review Questions
26. In the relationship between a raccoon and the fish in a stream, the raccoon is the ______.
a. predator c. herbivore
b. producer d. prey
Answer:
predator
Chapter 14Review Questions
27. If the number of owls in a forested area doubled in ten years,
a. the size of the owl population increased.b. the population density of owls increased.c. competition among the owls for food increased.d. all of the above are true.
Answer:
all of the above are true
Chapter 14Review Questions
28. The presence of predators usually______.a. Increases the number of species that can live in an
ecosystemb. Does not affect the size of prey populationsc. Increases competition between speciesd. Results in food and other resources that a species needs
becoming more scarce.
Answer:Increases the number of species that can live in an ecosystem
Chapter 14Review Questions
29. Omnivores, herbivores, carnivores, and decomposers are all types of ______.a. predators c. consumersb. prey d. producers
Answer:
consumers
Chapter 14Review Questions
30. Producers can create energy-rich substances. Consumers cannot. What can you infer about the place of producers in every food chain?
Write a short answer. ___________________________________________________________________
Answer:
Producers are at the bottom of every food chain.
Chapter 14Review Questions
