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Species Interactions And Relationships Review
Test Description: This is a review all about the interdependence among species in an ecosystem.
Instructions: Answer all questions to get your test result.
1) A relationship where one species kills and eats another species.
A
symbiosis
B
predation
C
parasitism
D
herbivory
2) In some areas on the United States, moose are so infested with ticks that they die. The moose/tick relationship is considered
A
parasitic
B
symbiotic
C
predatory
D
mutualistic
3) The ultimate source of energy in an ecosystem where a crab that eats small marine organisms is eaten by a seagull is
A
the seagull
B
the crab
C
the sun
D
small marine organisms
4) The first level of all food webs is
A
herbivores
B
primary consumers
C
photosynthesis
D
primary producers
5) In a food web what type of organism will have the MOST biomass?
A
omnivores
B
primary producers
C
herbivores
D
carnivores
6) Cattle grazing in a field is an example of
A
mutualism
B
herbivory
C
an omnivore
D
symbiosis
7) A relationship where two species are competing for a resource, possibly a limiting factor
A
competition
B
parasitism
C
predation
D
commensalism
8) What organisms get their energy directly from the sun?
A
herbivores
B
omnivores
C
carnivores
D
primary producers
9) Why is it necessary to have a lot of energy at the bottom of the food web/chain?
A
Technically the food web/chain is supported by organisms at the top of the food web/chain/
B
Producers are better
C
Carnivores eat omnivores and herbivores.
D
Technically the rest of the ecosystem is supported by those organisms at the bottom.
10) A relationship where both organisms benefit from living in close proximity with one another is called
A
mutualism
B
commensalism
C
parasitism
D
predation
*select an answer for all questions
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