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Question (11)

QN0034272

If a food chain contains 1 producer, 3 herbivores, and 2 carnivores, how many consumers are present altogether?

(A) 3
(B) 4
(C) 5
(D) 6

Correct Answer: C

Explanation:

Consumers = 3 herbivores + 2 carnivores = 5.

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Question (12)

QN0034273

Which statement best explains why producers are essential in a community?

(A) They recycle nutrients.
(B) They begin the flow of energy.
(C) They prey on herbivores.
(D) They consume dead matter.

Correct Answer: B

Explanation:

Producers capture solar energy and start food chains.

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Question (13)

QN0034274

A field has 60 grasshoppers and 20 frogs. What is the ratio of grasshoppers to frogs?

(A) 1 : 3
(B) 2 : 3
(C) 3 : 1
(D) 4 : 1

Correct Answer: C

Explanation:

60 : 20 = 3 : 1.

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Question (14)

QN0034275

If all producers disappeared from an ecosystem, which group would be affected first?

(A) Decomposers only
(B) Primary consumers
(C) Secondary consumers only
(D) Parasites only

Correct Answer: B

Explanation:

Primary consumers depend directly on producers.

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Question (15)

QN0034276

Which organism is both a consumer and a predator?

(A) Grass
(B) Deer
(C) Tiger
(D) Mushroom

Correct Answer: C

Explanation:

Tigers hunt other animals for food.

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Question (16)

QN0034277

A food chain has 4 trophic levels. Which organism occupies the first trophic level?

(A) Producer
(B) Herbivore
(C) Carnivore
(D) Decomposer

Correct Answer: A

Explanation:

Producers always occupy the first trophic level.

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Question (17)

QN0034278

In a pond ecosystem, algae are eaten by small fish, which are eaten by larger fish. Which organism is the primary consumer?

(A) Algae
(B) Small fish
(C) Large fish
(D) Bacteria

Correct Answer: B

Explanation:

Small fish feed directly on algae.

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Question (18)

QN0034279

There are 48 rabbits and 12 foxes in a grassland. Rabbits outnumber foxes by ________.

(A) 24
(B) 30
(C) 36
(D) 40

Correct Answer: C

Explanation:

48 − 12 = 36.

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Question (19)

QN0034280

Which statement correctly describes decomposers?

(A) They produce food.
(B) They break down dead organic matter.
(C) They eat only plants.
(D) They occupy the first trophic level.

Correct Answer: B

Explanation:

Decomposers break down dead plants and animals.

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Question (20)

QN0034281

If a food chain contains Grass → Goat → Leopard, which organism is the secondary consumer?

(A) Grass
(B) Goat
(C) Leopard
(D) None

Correct Answer: C

Explanation:

Leopard feeds on the goat.

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Question (11)

If a food chain contains 1 producer, 3 herbivores, and 2 carnivores, how many consumers are present altogether?

Explanation:

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Question (12)

Which statement best explains why producers are essential in a community?

Explanation:

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Question (13)

A field has 60 grasshoppers and 20 frogs. What is the ratio of grasshoppers to frogs?

Explanation:

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Question (14)

If all producers disappeared from an ecosystem, which group would be affected first?

Explanation:

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Question (15)

Which organism is both a consumer and a predator?

Explanation:

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Question (16)

A food chain has 4 trophic levels. Which organism occupies the first trophic level?

Explanation:

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Question (17)

In a pond ecosystem, algae are eaten by small fish, which are eaten by larger fish. Which organism is the primary consumer?

Explanation:

Link:

Question (18)

There are 48 rabbits and 12 foxes in a grassland. Rabbits outnumber foxes by ________.

Explanation:

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Question (19)

Which statement correctly describes decomposers?

Explanation:

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Question (20)

If a food chain contains Grass → Goat → Leopard, which organism is the secondary consumer?

Explanation:

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