Question 1

Question

A) In a food chain, with each feeding relationship, the energy transferred from one organism to
another will (1 point)
remain constant.
increase.
decrease.
be independent of the level.
Question 2
A) Most food chains normally consist of no more than (1 point)
zero to one organism.
eight to nine organisms.
three to five organisms.
two to three organisms.
Question 3
A) 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)
producers
decomposers
carnivores
omnivores
Question 4
A) What is the usual composition of a food chain? (1 point)
multiple producers and a consumer
a decomposer, a producer, and some consumers
a decomposer, some producers, and a consumer
a producer and multiple consumers

Answer 1

Here are the answers to the questions based on your descriptions:

Question 1
The energy transferred from one organism to another in a food chain will:
Answer: decrease.
(As energy is transferred between trophic levels, typically about 90% of the energy is lost as heat, so the remaining energy decreases.)

Question 2
Most food chains normally consist of no more than:
Answer: three to five organisms.
(Food chains are typically short, with 3-5 trophic levels being common.)

Question 3
Given the dietary habits of black bears, the term that most accurately characterizes them is:
Answer: omnivores.
(Black bears eat both plant matter and animal matter, which qualifies them as omnivores.)

Question 4
The usual composition of a food chain is:
Answer: a decomposer, a producer, and some consumers.
(This reflects the typical structure of a food chain where decomposers break down organic matter, producers create energy via photosynthesis, and consumers eat the producers or other consumers.)