AP BIOLOGY

ECOLOGY

ENERGY FLOW AND THE FOOD CHAIN

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Plants, insects, frogs, and snakes live in an ecosystem. What would happen if the snakes were removed from the ecosystem?
A
Insect population would increase.
B
Frog population would decrease.
C
Plant population would decrease.
D
Frog population would increase.
Explanation: 

Detailed explanation-1: -The population of frogs and grass would decrease. The snakes consume frogs according to the food chain pattern and hence their population will reduce. The population of grasshoppers would increase as there are no frogs to feed on them.

Detailed explanation-2: -Explanation: If snakes are removed from the food chain then the number of rats will increase at a very fast pace. As a result, there will be a shortage of wheat and it will decline rapidly. The population of tertiary consumers, i.e. eagles will also decline rapidly because they depend on snakes for a living.

Detailed explanation-3: -Suppose if frogs are removed, the insects will increase in number because there predators are removed. The snakes would die of starvation as their prey i.e. frogs will be removed from the trophic level.

Detailed explanation-4: -The population of frogs will increase as there would be no snakes to feed on them and the population of eagles will decrease as there would be no snakes for them to eat.

Detailed explanation-5: -Solution : If all the frogs of that area are removed, it will lead to the following: <br> (i) The population of grasshopper will increase. <br> (ii) The quantity of grass will decrease because of over population of grasshoppers.

There is 1 question to complete.