AP BIOLOGY

ECOLOGY

ENERGY FLOW AND THE FOOD CHAIN

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
If the number of frogs decreases, what would happen to the crickets that the frogs would eat?
A
The number of crickets would decrease
B
The number of crickets would increase
C
The number of crickets would remain the same
D
The crickets would move away.
Explanation: 

Detailed explanation-1: -Depletion in no. of frog in an area would increase the no. of organisms which are consumed by the frog. This will impart a great imbalance in ecosystem.

Detailed explanation-2: -Complete answer: In the given scenario, If the number of frogs (secondary consumers) is suddenly reduced, it will negatively affect the successive trophic levels. Due to the scarcity of food there will be interspecific competition for food resources among the snakes and soon their population will decline.

Detailed explanation-3: -The number of animals that eat the frogs will die off, then the animals that eat them will go hungry, and their populations will be devastated as well.

Detailed explanation-4: -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-5: -1) The number of grasshoppers would decrease because there are more frogs to eat them.

There is 1 question to complete.