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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
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
predatory
B
mutualistic
C
symbiotic
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
the sun
B
the crab
C
small marine organisms
D
the seagull
4) The first level of all food webs is
A
primary consumers
B
herbivores
C
photosynthesis
D
primary producers
5) In a food web what type of organism will have the MOST biomass?
A
carnivores
B
herbivores
C
omnivores
D
primary producers
6) Cattle grazing in a field is an example of
A
symbiosis
B
mutualism
C
an omnivore
D
herbivory
7) A relationship where two species are competing for a resource, possibly a limiting factor
A
commensalism
B
predation
C
parasitism
D
competition
8) What organisms get their energy directly from the sun?
A
carnivores
B
primary producers
C
herbivores
D
omnivores
9) Why is it necessary to have a lot of energy at the bottom of the food web/chain?
A
Technically the rest of the ecosystem is supported by those organisms at the bottom.
B
Carnivores eat omnivores and herbivores.
C
Technically the food web/chain is supported by organisms at the top of the food web/chain/
D
Producers are better
10) A relationship where both organisms benefit from living in close proximity with one another is called
A
predation
B
mutualism
C
parasitism
D
commensalism
*select an answer for all questions
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