Autotrophs make their own food while heterotrophs do not. 

In a food web, organisms are arranged according to their trophic level

Energy flow does not occur in a food web.

The primary source of energy in all ecosystems is Green plants.

A change in the food web due to any population have an effect on

In this case, the quantity of trees will severely increase because there will be no dear to consume those trees and leaves.

A simple diagram with arrows showing a single pathway of energy flow from grass, to a rabbit, to a fox is

Grass that gains energy from the sun is an example of a

Animals that eat a variety of meats, fruits, and vegetables are

A bird eats a worm. Who is the predator over here?

Animals generate _____ which the plants use.

Abiotic factors are also known as _____things.

Any waste materials can be used by living animals, plants, and other organisms.

When the energy of the sun converts into chemical energy for photosynthesis or respiration, the result is the loss of energy as heat.

If we remove a top predator, the food chain will remain the same.

Survival of wildlife is becoming difficult as their natural habitat is being cut down.

Global warming results in the_____ of ice caps.