1.9 - Trophic Levels, 1.10 - Energy Flow and 10% Rule, & 1.11 Food Chains and Food Webs

Question 1

trophic level

Answer 1

Rank in the feeding hierarchy of a food chain. Organisms at higher trophic levels consume those at lower trophic levels.

Question 2

food chain

Answer 2

a linear series of feeding relationships.

Question 3

Producers

Answer 3

An organism that uses energy from sunlight to produce its own food.

Question 4

Consumers

Answer 4

Organisms that consume other living organisms

Question 5

Detritivores

Answer 5

An organism such as a milipde or soil insect that scavenges the waste products or dead bodies of other community members.

Question 6

Decomposers

Answer 6

An organism such as gungus or bacterium that breaks down leaf litter and other nonliving matter into simple constituents that can be taken up and used by plants.

Question 7

Food Web

Answer 7

A visual representation of feeding interaction within an ecological that shows an array of relationships between organisms at different trophic levels.

Question 8

keystone species

Answer 8

A species that has strong or wide-reaching impact far out of proportion to its abundance

Question 9

trophic cascade

Answer 9

A series of changes in the population sizes of organisms at different trophic levels in a food chain.