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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
predation
B
symbiosis
C
herbivory
D
parasitism
2) In some areas on the United States, moose are so infested with ticks that they die. The moose/tick relationship is considered
A
predatory
B
symbiotic
C
mutualistic
D
parasitic
3) The ultimate source of energy in an ecosystem where a crab that eats small marine organisms is eaten by a seagull is
A
small marine organisms
B
the sun
C
the seagull
D
the crab
4) The first level of all food webs is
A
photosynthesis
B
primary producers
C
primary consumers
D
herbivores
5) In a food web what type of organism will have the MOST biomass?
A
herbivores
B
primary producers
C
carnivores
D
omnivores
6) Cattle grazing in a field is an example of
A
herbivory
B
an omnivore
C
mutualism
D
symbiosis
7) A relationship where two species are competing for a resource, possibly a limiting factor
A
parasitism
B
commensalism
C
predation
D
competition
8) What organisms get their energy directly from the sun?
A
herbivores
B
carnivores
C
omnivores
D
primary producers
9) Why is it necessary to have a lot of energy at the bottom of the food web/chain?
A
Producers are better
B
Technically the food web/chain is supported by organisms at the top of the food web/chain/
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
predation
B
commensalism
C
parasitism
D
mutualism
*select an answer for all questions
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