AP BIOLOGY

ECOLOGY

ENERGY FLOW AND THE FOOD CHAIN

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which sentence from the text supports your answer to the previous question?
A
“Scientists have been studying this isolated food chain for 50 years to understand how changes in one link can cause changes in another.”
B
“As more moose are born on the island, they eat more balsam fir.”
C
“Ten times the size of a wolf, a moose has long, strong legs and a dangerous kick.”
D
“However, when the moose population decreases, wolves starve.”
Explanation: 

Detailed explanation-1: -The whole food chain is affected by the over-use of chemicals in agriculture.

Detailed explanation-2: -Each living thing in an ecosystem is part of multiple food chains. Each food chain is one possible path that energy and nutrients may take as they move through the ecosystem. All of the interconnected and overlapping food chains in an ecosystem make up a food web.

Detailed explanation-3: -Food web is an important conceptual tool for illustrating the feeding relationships among species within a community, revealing species interactions and community structure, and understanding the dynamics of energy transfer in an ecosystem.

Detailed explanation-4: -Importance of a Food Web Food chains show how one organism relies on the survival of others. The environment is balanced by the food chain. Food webs show plants are the foundation. The flow of energy and nutrients is explained by food webs. The trophic level of organisms is determined by the food chain.

There is 1 question to complete.