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

b)be independent of the level.

c)increase.

d)decrease.

2)Food chains normally consist of no more than (1 point)

a)six organisms.

b)five organisms.

c)four organisms.

d)three organisms.

3)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)

a)decomposers

b)producers

c)omnivores

d)carnivores

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

a)a decomposer, some producers, and a consumer

b)a decomposer, a producer, and some consumers

c)multiple producers and a consumer

d)a producer and multiple consumers