In a food chain, with each feeding relationship, the energy transferred from one organism to another will(1 point)

Question

Responses/

decrease.
decrease.

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

increase.
increase.

remain constant.

Answer 1

In a food chain, with each feeding relationship, the energy transferred from one organism to another will decrease. This is because energy is lost at each trophic level, primarily due to metabolic processes and heat loss.

Answer 2

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

eight to nine organisms.
eight to nine organisms.

two to three organisms.
two to three organisms.

three to five organisms.
three to five organisms.

zero to one organism.
zero to one organism.

Answer 3

Most food chains normally consist of no more than three to five organisms. This limitation is primarily due to the loss of energy at each trophic level, which restricts the number of levels that can be supported in a food chain.

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

carnivores
carnivores

decomposers
decomposers

omnivores
omnivores

producers

Answer 5

Given the information, the term that most accurately characterizes black bears is omnivores. This is because they consume a variety of foods, including plants (grass, roots, berries) and animals (fish, insects, and dead mammals).

Answer 6

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

multiple producers and a consumer
multiple 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

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

Answer 7

The usual composition of a food chain is a producer and multiple consumers. This structure typically starts with a producer (such as a plant) that captures energy through photosynthesis, followed by various consumers that eat the producers and each other.