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Question (31)

QN0012503

If 42 living things are shown in a web and 14 are plants, how many are animals?

(A) 26
(B) 27
(C) 28
(D) 29

Correct Answer: C

Explanation:

42 − 14 = 28

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Question (32)

QN0012504

Why should humans protect natural habitats?

(A) To maintain the Web of Life
(B) To reduce biodiversity
(C) To remove food chains
(D) To weaken ecosystems

Correct Answer: A

Explanation:

Protecting habitats maintains ecological balance

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Question (33)

QN0012505

A food web contains 9 herbivores and 6 carnivores. How many consumers are there altogether?

(A) 13
(B) 14
(C) 15
(D) 16

Correct Answer: C

Explanation:

9 + 6 = 15

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Question (34)

QN0012506

Which example shows a direct dependence relationship?

(A) Rabbit eating grass
(B) Mountain beside a river
(C) Cloud above a tree
(D) Rock near a pond

Correct Answer: A

Explanation:

Rabbit directly depends on grass for food

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Question (35)

QN0012507

If an ecosystem has 50 interconnected species and 10 disappear, how many species remain?

(A) 35
(B) 38
(C) 40
(D) 45

Correct Answer: C

Explanation:

50 − 10 = 40

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Question (36)

QN0012508

What does the thread represent in the Web of Life activity?

(A) Connections among living things
(B) Animal homes only
(C) Plant roots only
(D) Forest boundaries

Correct Answer: A

Explanation:

Thread shows interconnections in the ecosystem

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Question (37)

QN0012509

A web model contains 45 links. If 15 links are removed, what fraction of the original links remains?

(A) 1/3
(B) 2/3
(C) 3/4
(D) 4/5

Correct Answer: B

Explanation:

Remaining = 30/45 = 2/3

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Question (38)

QN0012510

Which living thing helps form the foundation of many ecosystems?

(A) Plants
(B) Tigers
(C) Eagles
(D) Snakes

Correct Answer: A

Explanation:

Plants are primary producers forming ecosystem base

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Question (39)

QN0012511

If 24 herbivores depend on plants and half migrate elsewhere, how many remain?

(A) 10
(B) 11
(C) 12
(D) 13

Correct Answer: C

Explanation:

24 ÷ 2 = 12

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Question (40)

QN0012512

What is the main message of the Web of Life?

(A) All living things are connected and depend on one another
(B) Only animals are important
(C) Plants and animals are unrelated
(D) Humans are separate from nature

Correct Answer: A

Explanation:

All organisms are interdependent in nature

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Question (31)

If 42 living things are shown in a web and 14 are plants, how many are animals?

Explanation:

Link:

Question (32)

Why should humans protect natural habitats?

Explanation:

Link:

Question (33)

A food web contains 9 herbivores and 6 carnivores. How many consumers are there altogether?

Explanation:

Link:

Question (34)

Which example shows a direct dependence relationship?

Explanation:

Link:

Question (35)

If an ecosystem has 50 interconnected species and 10 disappear, how many species remain?

Explanation:

Link:

Question (36)

What does the thread represent in the Web of Life activity?

Explanation:

Link:

Question (37)

A web model contains 45 links. If 15 links are removed, what fraction of the original links remains?

Explanation:

Link:

Question (38)

Which living thing helps form the foundation of many ecosystems?

Explanation:

Link:

Question (39)

If 24 herbivores depend on plants and half migrate elsewhere, how many remain?

Explanation:

Link:

Question (40)

What is the main message of the Web of Life?

Explanation:

Link:

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