Trophic Levels and Food Webs – Flashcards
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Which of the following has the most biomass?
a.
quaternary consumers
b.
secondary consumers
c.
primary consumers
d.
producers
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answer
D
question
It is advantageous for a predator to prey exclusively on a single prey species.
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answer
F
question
Organisms produce their own energy or provide energy for other organisms in a food chain. Many different organisms can be found in the Amazon rainforest in South America. Organisms in this biome include a variety of trees, plants, insects, fish, birds, reptiles, and mammals. The jaguar and anaconda are among the largest predators found in the Amazon.Which trophic level do anacondas and jaguars fill in the Amazon rainforest?
answer
tertiary consumer
question
The initial period of population growth for a species in an environment is _______.
a.
linear
b.
exponential
c.
slow
d.
negative
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answer
B
question
Producers are always the largest level in trophic pyramids.
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answer
F
question
A quaternary consumer species would be expected to have a smaller population than a secondary consumer species.
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answer
T
question
Which best describes the trophic level of an organism?
answer
its position in a food chain
question
Which organism gathers its energy directly from the sun?
answer
a rose plant
question
Organisms produce their own energy or provide energy for other organisms in a food chain. Yellowfin tuna, or Thunnus albacores, are large sport fish found in tropical and subtropical waters around the world. They typically school under objects such as boats or patches of driftwood for protection from predators. Schooling under these structures also provides yellowfin tuna with easy access to smaller fish that may be foraging for food.Which trophic level does yellowfin tuna fill in a food chain?
answer
secondary consumer
question
Less than 0.1% of the energy in a food chain generally makes it from the sun to quaternary consumers.
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answer
T