BIOLOGY 1 | Study Mode

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Question 21
BIOLOGY 1 Q 21 image
A

II

B

I

C

IV

D

III

Explanation

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Correct option: D
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Question 22
BIOLOGY 1 Q 22 image
A

absorption of energy from the sun

B

release of carbon(IV) oxide

C

release of oxygen as a by-product

D

escape of mineral salts

Explanation

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Correct option: C
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Question 23
BIOLOGY 1 Q 23 image
A

II and I respectively

B

I and II respectively

C

IV and III respectively

D

III and IV respectively

Explanation

The description of the image suggests that the arrows labelled III and IV respectively represent the movement of material in the xylem and phloem tissues of the plant. Specifically, arrow III shows the movement of sugars and other organic compounds from the leaf through the trunk to the roots, which is the function of the phloem tissue. Arrow IV, on the other hand, shows the movement of water and minerals from the roots through the trunk to the leaf, which is the function of the xylem tissue. 


Correct option: C
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Question 24
BIOLOGY 1 Q 24 image
A

fruits

B

seeds

C

nectar

D

flesh

Explanation

The shape and structure of the beak and feet of a meat-eating bird are specifically adapted to help them catch, kill and eat prey. 

The beak of a meat-eating bird, like a hawk or an eagle, is sharp, curved and hooked at the end. This shape is ideal for tearing flesh and gripping prey. The beak is also strong and powerful, allowing the bird to bite through the tough hides of its prey.

The feet of a meat-eating bird are also adapted for hunting. They have sharp talons, which are used to grasp and hold onto prey. The talons are strong and agile, allowing the bird to catch and kill prey quickly and efficiently. 

In addition to their sharp talons, meat-eating birds have powerful legs and feet, which are adapted for gripping and carrying prey. They also have a flexible joint in their ankle, which allows them to rotate their feet backwards to grasp prey more securely. 

Overall, the shape and structure of the beak and feet of meat-eating birds are perfectly designed for hunting and killing prey, making them highly effective predators in the animal kingdom.


Correct option: D
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Question 25
BIOLOGY 1 Q 25 image
A

generate heat to keep the animal warm

B

provide some power for flight

C

serve as insulator to maintain body heat

D

prevent ectoparasites from attacking the animal

Explanation

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Correct option: C
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Question 26
BIOLOGY 1 Q 26 image
A

I

B

II

C

III

D

IV

Explanation

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Correct option: D
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Question 27
BIOLOGY 1 Q 27 image
A

IV, III, II and I

B

I, II, IV and III

C

III, II, IV and I

D

I, IV, II and III

Explanation

IV. Fish (highly dependent on aquatic conditions for reproduction)
III. Frog (lay eggs in water, but have a terrestrial mode of reproduction)
II. Crocodile (lay eggs on land, but young are dependent on aquatic conditions for survival)
I. Rabbit (terrestrial mode of reproduction)


Correct option: A
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Question 28
BIOLOGY 1 Q 28 image
A

25C

B

50C

C

75C

D

100C

Explanation

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Correct option: B
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Question 29
BIOLOGY 1 Q 29 image
A

I and II

B

II only

C

II and III

D

I and III

Explanation

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Correct option: D
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Question 30
BIOLOGY 1 Q 30 image
A

wind

B

water

C

insect

D

man

Explanation

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Correct option: C

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