Ecology Test 1 Review: Question Preview (ID: 21289)


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Mutualism is
a) one species benefits and the other is neither harmed nor helped b) one species benefits (parasite) and the other is harmed (host) c) both species benefit d)
Trophic levels represent
a) a feeding step b) only the plants in an environment c) only the carnivores in an environment d)
Primary consumers are carnivores
a) True b) False c) d)
Another term for dead animals is carrion
a) True b) False c) d)
In symbiosis one living thing is always harmed.
a) False b) True c) d)
Commensalism is
a) one species benefits and the other is neither harmed nor helped b) one species benefits (parasite) and the other is harmed (host) c) both species benefit d)
Parasitism is
a) one species benefits and the other is neither harmed nor helped b) one species benefits (parasite) and the other is harmed (host) c) both species benefit d)
Autotrophs obtain food from
a) trapping energy from the sun to carry out photosynthesis b) eating animals and other organisms c) d)
Heterotrophs obtain food from
a) trapping energy from the sun to carry out photosynthesis b) eating animals and other organisms c) d)
Where can you find a producer in a food chain?
a) Bottom b) Top c) Middle d) Depends on the type of producer
All consumers are heterotrophs
a) True b) False c) d)
All producers are autotrophs
a) True b) False c) d)
A limiting factor is
a) the role a species plays in a community; its total way of life b) the place in which an organism lives out its life c) any biotic or abiotic factor that restricts the existence of organisms in a specific environment d) these are all incorrect
A habitat is
a) the role a species plays in a community; its total way of life b) the place in which an organism lives out its life c) any biotic or abiotic factor that restricts the existence of organisms in a specific environment d) these are all incorrect
A biosphere is
a) a group of organisms of one species living in the same place at the same time. b) several interacting populations that inhabit the same environment c) populations in a community and the abiotic factors with which they interact d) life supporting portions of Earth composed of air, land, fresh water, and salt water.
A niche is
a) the role a species plays in a community; its total way of life b) the place in which an organism lives out its life c) any biotic or abiotic factor that restricts the existence of organisms in a specific environment d) these are all incorrect
An ecosystem is
a) a group of organisms of one species living in the same place at the same time. b) several interacting populations that inhabit the same environment c) populations in a community and the abiotic factors with which they interact d) life supporting portions of Earth composed of air, land, fresh water, and salt water.
A community is
a) a group of organisms of one species living in the same place at the same time. b) several interacting populations that inhabit the same environment c) populations in a community and the abiotic factors with which they interact d) life supporting portions of Earth composed of air, land, fresh water, and salt water.
As you move up a food chain, both available energy and biomass
a) decrease b) increase c) stay the same d) increase and decrease
A population is
a) a group of organisms of one species living in the same place at the same time. b) several interacting populations that inhabit the same environment c) populations in a community and the abiotic factors with which they interact d) life supporting portions of Earth composed of air, land, fresh water, and salt water.
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