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Question (1)

QN0031428

A student places four objects on a table: a wooden chair, a potted rose plant, a toy robot that walks using batteries, and a bicycle. Which object should be identified as living based on all essential characteristics of life?

(A) Wooden chair
(B) Toy robot
(C) Bicycle
(D) Potted rose plant

Correct Answer: D

Explanation:

Although the robot moves, it cannot grow, respire, reproduce or respond naturally to stimuli. The rose plant shows all characteristics of living beings.

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Question (2)

QN0031429

Four bean seeds are kept under different conditions: P: Moist soil with air Q: Dry soil with air R: Excess water covering the soil S: Moist soil kept in darkness In which pots are the seeds most likely to germinate?

(A) P and S only
(B) P and Q only
(C) Q and R only
(D) P, Q and S only

Correct Answer: A

Explanation:

Seeds require water and air. Darkness does not prevent bean seed germination, but lack of water or excess water does.

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Question (3)

QN0031430

Which one of the following is NOT an essential characteristic used to identify a living being?

(A) Respiration
(B) Growth
(C) Ability to make sound
(D) Response to stimuli

Correct Answer: C

Explanation:

Many living beings do not produce sounds, but all living beings respire, grow and respond to stimuli.

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Question (4)

QN0031431

A gardener places a potted plant near a window where sunlight enters only from one side. After a week, the shoot bends towards the window while the roots continue growing downward. Which conclusion is correct?

(A) Both roots and shoots grow towards light.
(B) Roots and shoots always grow in opposite directions.
(C) Shoots respond to light while roots continue growing downward.
(D) Roots stop growing when light comes from one side.

Correct Answer: C

Explanation:

Shoots grow towards light, whereas roots generally grow downward irrespective of the direction of light.

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Question (5)

QN0031432

A student says, "A seed is non-living because it does not show visible movement." Which statement best corrects this idea?

(A) Seeds are non-living until water is added.
(B) Seeds are living because they can germinate under suitable conditions.
(C) Seeds become living only after leaves appear.
(D) Seeds are living because they move from place to place.

Correct Answer: B

Explanation:

A seed is alive in a dormant state. Under suitable conditions it germinates and develops into a new plant.

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Question (6)

QN0031433

A child accidentally touches a hot vessel and immediately pulls back the hand. This quick action is an example of

(A) nutrition
(B) reproduction
(C) response to a stimulus
(D) excretion

Correct Answer: C

Explanation:

Heat acts as the stimulus and withdrawing the hand is the response.

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Question (7)

QN0031434

A science teacher keeps an inverted germinating seedling in sunlight. After several days, the root bends downward and the shoot bends upward. This observation shows that

(A) roots always grow towards sunlight
(B) shoots cannot change direction
(C) roots and shoots adjust their direction of growth naturally
(D) roots and shoots remain inverted forever

Correct Answer: C

Explanation:

Even when inverted, roots grow downward while shoots grow upward by changing their direction.

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Question (8)

QN0031435

Which sequence correctly represents the life cycle of a bean plant?

(A) Seed → Fruit → Flower → Seedling → Plant
(B) Seed → Germination → Plant → Flower → Fruit with seeds
(C) Flower → Seed → Fruit → Germination → Plant
(D) Seed → Plant → Fruit → Germination → Flower

Correct Answer: B

Explanation:

A seed germinates into a plant, which later produces flowers and then fruits containing seeds.

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Question (9)

QN0031436

A health worker notices that an unused cooler contains stagnant water with mosquito larvae and pupae. What is the main reason for removing the stagnant water?

(A) It prevents mosquitoes from laying eggs on walls.
(B) It removes the water needed for mosquito development.
(C) It increases oxygen in the surroundings.
(D) It makes adult mosquitoes unable to fly.

Correct Answer: B

Explanation:

Mosquito eggs, larvae and pupae require stagnant water to complete their life cycle.

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Question (10)

QN0031437

Study the following observations. I. A froglet has legs but still has a small tail. II. A tadpole uses its tail for swimming. III. An adult frog lives both on land and in water. Which of the following correctly arranges these stages from earlier to later?

(A) II → I → III
(B) I → II → III
(C) III → II → I
(D) II → III → I

Correct Answer: A

Explanation:

Tadpole develops first, then froglet, and finally the adult frog. The tail gradually disappears as the frog matures.

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Question (1)

A student places four objects on a table: a wooden chair, a potted rose plant, a toy robot that walks using batteries, and a bicycle. Which object should be identified as living based on all essential characteristics of life?

Explanation:

Link:

Question (2)

Four bean seeds are kept under different conditions: P: Moist soil with air Q: Dry soil with air R: Excess water covering the soil S: Moist soil kept in darkness In which pots are the seeds most likely to germinate?

Explanation:

Link:

Question (3)

Which one of the following is NOT an essential characteristic used to identify a living being?

Explanation:

Link:

Question (4)

A gardener places a potted plant near a window where sunlight enters only from one side. After a week, the shoot bends towards the window while the roots continue growing downward. Which conclusion is correct?

Explanation:

Link:

Question (5)

A student says, "A seed is non-living because it does not show visible movement." Which statement best corrects this idea?

Explanation:

Link:

Question (6)

A child accidentally touches a hot vessel and immediately pulls back the hand. This quick action is an example of

Explanation:

Link:

Question (7)

A science teacher keeps an inverted germinating seedling in sunlight. After several days, the root bends downward and the shoot bends upward. This observation shows that

Explanation:

Link:

Question (8)

Which sequence correctly represents the life cycle of a bean plant?

Explanation:

Link:

Question (9)

A health worker notices that an unused cooler contains stagnant water with mosquito larvae and pupae. What is the main reason for removing the stagnant water?

Explanation:

Link:

Question (10)

Study the following observations. I. A froglet has legs but still has a small tail. II. A tadpole uses its tail for swimming. III. An adult frog lives both on land and in water. Which of the following correctly arranges these stages from earlier to later?

Explanation:

Link:

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