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Question (31)

QN005432

A germinated seedling is placed upside down. After several days, the root will most likely:

(A) Continue growing upward
(B) Stop growing
(C) Bend and grow downward
(D) Grow sideways only

Correct Answer: C

Explanation:

Roots naturally grow downward.

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Question (32)

QN005433

When a plant receives sunlight from only one side, the shoot generally grows:

(A) Away from light
(B) Toward the light
(C) Straight downward
(D) Randomly

Correct Answer: B

Explanation:

Shoots show growth towards light.

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Question (33)

QN005434

In an upright plant, the usual direction of root growth is:

(A) Upward
(B) Downward
(C) Toward sunlight only
(D) Horizontally

Correct Answer: B

Explanation:

Roots generally grow downward.

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Question (34)

QN005435

In an upright plant, the shoot generally grows:

(A) Upward
(B) Downward
(C) Into the soil
(D) Toward the root

Correct Answer: A

Explanation:

Shoots grow upward.

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Question (35)

QN005436

Jagadish Chandra Bose built a crescograph mainly to:

(A) Measure rainfall
(B) Record plant responses and growth
(C) Count seeds
(D) Measure soil depth

Correct Answer: B

Explanation:

The crescograph measured plant growth and responses.

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Question (36)

QN005437

Which observation best supports the idea that plants respond to stimuli?

(A) A stone becoming warm in sunlight
(B) A leaf changing colour after painting
(C) A shoot bending toward light
(D) A chair being moved

Correct Answer: C

Explanation:

The shoot responds to light as a stimulus.

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Question (37)

QN005438

A student finds an organism that grows, reproduces, and responds to stimuli but currently shows very little movement. The organism is most likely:

(A) Non-living
(B) Living
(C) Artificial
(D) Dead

Correct Answer: B

Explanation:

Movement is not the only characteristic of life.

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Question (38)

QN005439

Which of the following would be the strongest evidence that a seed is living?

(A) It has a hard coat.
(B) It can germinate under suitable conditions.
(C) It is small in size.
(D) It remains in soil.

Correct Answer: B

Explanation:

Germination shows that the seed is alive.

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Question (39)

QN005440

Which statement correctly distinguishes living beings from non-living things?

(A) Only living beings can be large.
(B) Only living beings can move from place to place.
(C) Living beings perform life processes such as respiration and reproduction.
(D) Living beings are always green.

Correct Answer: C

Explanation:

Life processes are the key distinguishing features.

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Question (40)

QN005441

A plant shows growth, respiration through stomata, excretion of excess water, and response to light. Which conclusion is most appropriate?

(A) Plants are non-living because they do not walk.
(B) Plants possess essential characteristics of living beings.
(C) Plants become living only after flowering.
(D) Plants are partly living and partly non-living.

Correct Answer: B

Explanation:

The plant exhibits several characteristics of living beings.

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Question (31)

A germinated seedling is placed upside down. After several days, the root will most likely:

Explanation:

Link:

Question (32)

When a plant receives sunlight from only one side, the shoot generally grows:

Explanation:

Link:

Question (33)

In an upright plant, the usual direction of root growth is:

Explanation:

Link:

Question (34)

In an upright plant, the shoot generally grows:

Explanation:

Link:

Question (35)

Jagadish Chandra Bose built a crescograph mainly to:

Explanation:

Link:

Question (36)

Which observation best supports the idea that plants respond to stimuli?

Explanation:

Link:

Question (37)

A student finds an organism that grows, reproduces, and responds to stimuli but currently shows very little movement. The organism is most likely:

Explanation:

Link:

Question (38)

Which of the following would be the strongest evidence that a seed is living?

Explanation:

Link:

Question (39)

Which statement correctly distinguishes living beings from non-living things?

Explanation:

Link:

Question (40)

A plant shows growth, respiration through stomata, excretion of excess water, and response to light. Which conclusion is most appropriate?

Explanation:

Link:

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