Land Habitats Answers

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1
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From the producer level to which level does energy flow directly?

A
decomposer
B
tertiary consumer
C
secondary consumer
D
primary consumer
2
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Which is the primary consumer in this food chain?

Question illustration
A
rabbit
B
grass
C
snake
D
hawk
3

Which organism is an example of a producer?

A
moth
B
mushroom
C
rose bush
D
cheetah
4

Yellowfin tuna, or Thunnus albacores, are large sport fish that are 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 a food source such as smaller herbivorous fish that may be foraging for food around the structures. Which trophic level does yellowfin tuna fill in a food chain?

A
producer
B
primary consumer
C
secondary consumer
D
tertiary consumer
5

Maggots feed on dead and decaying organisms for energy. What are maggots?

A
autotrophs
B
producers
C
decomposers
D
heterotrophs
6

Which kind of organism is an autotroph?

A
consumer
B
producer
C
decomposer
D
herbivore
7

In the food chain below, which is the producer?grass mouse snake hawk

Question illustration
A
grass
B
mouse
C
snake
D
hawk
8

Which is an interconnection of food chains in an ecosystem?

A
food web
B
trophic chain
C
energy web
D
producer web
9

Food chains show energy transfer between organisms. The size of a food chain can vary, yet there is a limit to the number of levels that a food chain can reach. Why is there a limit to the number of levels that a food chain can reach?

A
Plants are not infinite in number.
B
Producers are limited by consumers.
C
Carnivores are too large to be eaten.
D
Energy is lost at each trophic level.
10

Which organisms are heterotrophs?

A
photosynthesizers
B
producers
C
consumers
D
plants

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