AP BIOLOGY

ECOLOGY

ENERGY FLOW AND PRIMARY PRODUCTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A food web consists of?
A
Many overlapping food chains in an ecosystem.
B
A series of events in which one organism eats another and obtains energy.
C
Amount of energy that moves from one feeding level to another.
D
Many types of insects that are stuck.
Explanation: 

Detailed explanation-1: -All of the interconnected and overlapping food chains in an ecosystem make up a food web. Organisms in food chains are grouped into categories called trophic levels. Roughly speaking, these levels are divided into producers (first trophic level), consumers (second, third, and fourth trophic levels), and decomposers.

Detailed explanation-2: -A series of overlapping food chains is called a food web. The organisms in a food web eat or are eaten by many organisms.

Detailed explanation-3: -The different feeding positions in a food chain or web are called trophic levels. The first trophic level consists of producers, the second of primary consumers, the third of secondary consumers, and so on. There usually are no more than four or five trophic levels in a food chain or web.

Detailed explanation-4: -A food web is the overlapping of food chains within an ecosystem.

Detailed explanation-5: -There are two types of food chains, namely the detritus food chain and the grazing food chain. Let’s look at them more closely: Detritus food chain: The detritus food chain includes different species of organisms and plants like algae, bacteria, fungi, protozoa, mites, insects, worms and so on.

There is 1 question to complete.