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Question (31)

QN005072

Which combination is characteristic of dicot plants?

(A) Parallel venation, fibrous roots, one cotyledon
(B) Reticulate venation, taproot, two cotyledons
(C) Parallel venation, taproot, one cotyledon
(D) Fibrous roots, two cotyledons, parallel venation

Correct Answer: B

Explanation:

Dicots generally have two cotyledons, taproots, and reticulate venation.

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Question (32)

QN005073

A scientist observes a plant with two cotyledons and reticulate venation. Which root system is most likely present?

(A) Fibrous root
(B) Taproot
(C) No root
(D) Aerial root

Correct Answer: B

Explanation:

Reticulate venation and two cotyledons indicate a taproot system.

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Question (33)

QN005074

Which animal uses fins for movement?

(A) Goat
(B) Pigeon
(C) Fish
(D) Ant

Correct Answer: C

Explanation:

Fish swim using fins.

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Question (34)

QN005075

Which animal uses both legs and wings for movement?

(A) Goat
(B) Fish
(C) Pigeon
(D) Earthworm

Correct Answer: C

Explanation:

Pigeons walk with legs and fly with wings.

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Question (35)

QN005076

Janaki Ammal is known for:

(A) Documenting and preserving India’s plant biodiversity
(B) Inventing aeroplanes
(C) Discovering electricity
(D) Building dams

Correct Answer: A

Explanation:

Janaki Ammal contributed significantly to documenting India's plant diversity.

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Question (36)

QN005077

The Save Silent Valley Movement became famous because it helped:

(A) Increase mining activities
(B) Preserve a forest and its biodiversity
(C) Build a large city
(D) Remove wildlife from forests

Correct Answer: B

Explanation:

The movement successfully protected the biodiversity-rich Silent Valley forest.

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Question (37)

QN005078

A cactus survives in deserts because its thick fleshy stem helps it:

(A) Produce snow
(B) Store water
(C) Fly in air
(D) Catch fish

Correct Answer: B

Explanation:

Thick fleshy stems store water for survival in deserts.

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Question (38)

QN005079

Deodar trees have conical shapes and sloping branches mainly to:

(A) Attract insects
(B) Store food
(C) Allow snow to slide off easily
(D) Float on water

Correct Answer: C

Explanation:

The shape helps prevent snow accumulation on branches.

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Question (39)

QN005080

The special features that help plants and animals survive in a particular region are called:

(A) Adaptations
(B) Habits
(C) Symptoms
(D) Pollinators

Correct Answer: A

Explanation:

Adaptations enable organisms to survive in their habitats.

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Question (40)

QN005081

Which of the following is an amphibian because it can live both on land and in water?

(A) Camel
(B) Frog
(C) Pigeon
(D) Goat

Correct Answer: B

Explanation:

Frogs spend part of their life on land and part in water.

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Question (31)

Which combination is characteristic of dicot plants?

Explanation:

Link:

Question (32)

A scientist observes a plant with two cotyledons and reticulate venation. Which root system is most likely present?

Explanation:

Link:

Question (33)

Which animal uses fins for movement?

Explanation:

Link:

Question (34)

Which animal uses both legs and wings for movement?

Explanation:

Link:

Question (35)

Janaki Ammal is known for:

Explanation:

Link:

Question (36)

The Save Silent Valley Movement became famous because it helped:

Explanation:

Link:

Question (37)

A cactus survives in deserts because its thick fleshy stem helps it:

Explanation:

Link:

Question (38)

Deodar trees have conical shapes and sloping branches mainly to:

Explanation:

Link:

Question (39)

The special features that help plants and animals survive in a particular region are called:

Explanation:

Link:

Question (40)

Which of the following is an amphibian because it can live both on land and in water?

Explanation:

Link:

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