4. Food Chains And Food Webs

Question 1

Food chains

Answer 1

Linear path representations that describe the feeding relationships among the organisms in an ecosystem.

Question 2

Food webs

Answer 2

They represent a more accurate and real net of interactions in ecosystems, because usually a population may be consumed by more than one consumer.

Question 3

Characteristics of food webs

Answer 3

• Link together several food chains.

Question 4

Characteristics of food chains

Answer 4

• Each population feeds on the precedes and is consumed by the one that follows.
• Decomposers are not usually represented in food chains/webs because they interact with every trophic level.
• Arrows point from the organism being eaten to the organism that eats it.