grass → insect → frog → snake → eagle
What will happen initially to the above food chain if the snakes are killed in large numbers?
(a) Population of frogs will decrease.
(b) Population of both frogs and eagle will decrease.
(c) Population of frogs will increase and eagles will decrease.
(d) It will make no difference to the number of any of the organisms.

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Solution

(c) Population of frogs will increase and eagles will decrease.

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.

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Similar questions

In the following food chain, which organisms will have the least energy?

Grass→Grasshopper→Frog→Snake→Eagle

Q. Make up a food chain:
Frog, Eagle, Worm, Snake, Grass.

Q. Which group of organisms together will not form a food chain?
I. Grass, lion, rabbit
II. Plankton, leopard, hawk
III. Lion, grass, snake, tiger
IV. Frog, snake, eagle, grass, grasshopper

Which of the following organism in the given food chain would be considered as secondary consumer?
Grass $\to$ Insect $\to$ Frog $\to$ Snake $\to$ Eagle

Grass $\to$ Grasshopper $\to$ Frog $\to$ Snake

From the given food chain, which organism's population is likely to decrease if the number of snakes increase?

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(c) Population of frogs will increase and eagles will decrease. 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.

(c) Population of frogs will increase and eagles will decrease.

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.