Question

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

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

increase.
increase.

remain constant.
remain constant.

decrease.
Answer
Question
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.

three to five organisms.
three to five organisms.

two to three organisms.
Answer
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
What is the usual composition of a food chain?(1 point)
Responses

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

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

multiple producers and a consumer
multiple producers and a consumer

a producer and multiple consumers
a producer and multiple consumers
Answered by GPT-4o mini
The correct response is "decrease."

In a food chain, energy transfer between organisms is generally inefficient, with typically only about 10% of the energy being transferred from one trophic level to the next. This means that, as you move up the food chain, the amount of energy available decreases.
Answered by GPT-4o mini
The correct response is "three to five organisms."

Most food chains typically consist of three to five trophic levels, as energy transfer between levels is inefficient, limiting the number of levels that can be sustained.
Answered by GPT-4o mini
The correct response is "omnivores."

Black bears have a varied diet that includes plants (grass, roots, berries) and animal matter (insects, fish, and other mammals), which classifies them as omnivores.
Answered by GPT-4o mini
The correct response is "a decomposer, a producer, and some consumers."

A typical food chain consists of a producer (such as a plant), one or more consumers (herbivores and/or carnivores), and often includes decomposers that break down dead organic matter.