Food Chains and Food Webs Review

Front

Why are producers generally found at the beginning of a food chain?

Back

Producers do not rely on other organisms for food.

Front

The organisms represented by X are: Decomposers, Producers, Carnivores, Scavengers

Back

Producers

Front

Effect of drastic reduction in producer organisms in a meadow environment?

Back

The rabbit population would decrease.

Front

Most of the food and oxygen in the environment is produced by the action of:

A) saprophytic bacteria

,

B) heterotrophic organisms

,

C) aerobic protozoans

,

D) autotrophic organisms

Back

autotrophic organisms

Front

Which two organisms are classified as producers?

Back

algae and grass

Front

For a producer to maintain itself, which factor must be present in its environment? Options: carnivores, herbivores, sunlight, parasites.

Back

sunlight

Front

Why is a fruit fly classified as a consumer rather than a producer?

Back

It is unable to synthesize its own food.

Front

Because turkey vultures feed mainly on animals that they have not killed, they are known as:

A) predators

,

B) scavengers

,

C) omnivores

,

D) autotrophs

Back

scavengers

Front

Which row in the chart below best describes decomposers?

Back

2

Front

Which organisms are primary consumers? Options: grass, mice, and hawks; owls, snakes, and hawks; seeds, grass, and shrubs; songbirds, mice, and rabbits.

Back

songbirds, mice, and rabbits