Energy and Matter in an Ecosystem Quick Check

Question

1 of 41 of 4 Items
Question
In a food chain, with each feeding relationship, the energy transferred from one organism to another will(1 point)
Responses

increase.
increase.

be independent of the level.
be independent of the level.

remain constant.
remain constant.

decrease.

Answer 1

decrease.

Answer 2

Most food chains normally consist of no more than (1 point)
Responses

zero to one organism.
zero to one organism.

eight to nine organisms.
eight to nine organisms.

two to three organisms.
two to three organisms.

three to five organisms.

Answer 3

three to five organisms.

Answer 4

The black bear is common to North America. Black bears eat many foods, mainly grass, roots, berries, and insects. However, fish and mammals—including those already dead—are also part of their diet. Some tend to wander near campsites and can develop a taste for human food and garbage. Given this information, which term most accurately characterizes black bears? (1 point)
Responses

decomposers
decomposers

omnivores
omnivores

producers
producers

carnivores
carnivores

Answer 5

omnivores

Answer 6

What is the usual composition of a food chain?(1 point)
Responses

a decomposer, some producers, and a consumer
a decomposer, some producers, and a consumer

a decomposer, a producer, and some consumers
a decomposer, a producer, and some consumers

a producer and multiple consumers
a producer and multiple consumers

multiple producers and a consumer

Answer 7

a producer and multiple consumers

Answer 8

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