Adaptations in Living Organisms Test

Result

Adaptations in Living Organisms Test - 2

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Weekly Quiz Competition

Question 1
1 / -0

Which of the following structures are associated with the sense of balance in mammals?

A
Cochlea and tympanum

B
Eustachian tube and nasal passage

C
Oval window and ear lobes

D
Ampullae and semi-circular canals

Solution

Ampullae and semi-circular canals are associated with the sense of balance in mammals.
Question 2
1 / -0

Which of the following adaptations of birds is helpful in birds for their aerial mode of life?

A
Streamlined body

B
Large eyes

C
Clawed digits in hind limbs

D
Long and flexible neck

Solution

Streamlined body in birds is helpful for aerial mode of life. A streamlined body shape and a lightweight skeleton composed of hollow bones minimise air resistance and reduce the amount of energy necessary to become and remain airborne.
Question 3
1 / -0

Which of the following functions are served by the feet in birds if they have nail like toes?

A
Grasping

B
Scratching

C
Swimming

D
Climbing

Solution

Feet in birds are modified to perform the function of grasping.
Question 4
1 / -0

Which kind of feet is present in birds to grab a perch tightly?

A
Nail like toes

B
Large curved claws

C
A long back toe

D
Feet with three toes

Solution

A long back toe present in birds to grab a perch tightly
Question 5
1 / -0

Match the following shapes of feet with their functions:

(i) Large curved claws (1) Grasping

(ii) Nail like feet (2) Scratching

(iii) Paddles like feet (3) Swimming

(iv) Feet with three toes (4) Perching

A
(i) – (1), (ii) – (2), (iii) – (3), (iv) – (4)

B
(i) – (2), (ii) – (1), (iii) – (4), (iv) – (3)

C
(i) – (4), (ii) – (3), (iii) – (2), (iv) – (1)

D
(i) – (2), (ii) – (3), (iii) – (4), (iv) – (1)

Solution

(i) – (1), (ii) – (2), (iii) – (3), (iv) – (4)
Question 6
1 / -0

Which of the following features is found in both birds and fishes?

A
Flexible neck

B
Mucus coating on body

C
Streamlined body

D
Air sacs in the body

Solution

A streamlined shape can allow fish and bird to have less friction and allowing it to move faster and quicker in water and air, respectively.
Question 7
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Which of the following features is not found in birds?

A
Highly developed brain

B
Reduced right ovary

C
Warm blooded

D
Fixed neck

Solution

Among these, fixed neck is the feature which is not found in birds.
Question 8
1 / -0

Which of the following is not a characteristic feature of fishes?

A
Streamlined body

B
Flexible neck

C
Fins for locomotion

D
Water proof scales on the body

Solution

Fishes have streamlined body, fins for locomotion, fixed neck and water proof scales on the body.
Question 9
1 / -0

Where is the caudal fin situated in the fishes?

A
Close to the heal

B
Lower region corresponding to hind legs

C
Along top middle line of trunk

D
At the end in the form of tail

Solution

Caudal fin is situated at the end in the form of tail in the fishes.It is used for propulsion.
Question 10
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Which of the following fins control(s) the rolling and yawing movements of fish during swimming?

A
Caudal fin

B
Dorsal fin

C
Pectoral fin

D
Dorsal and anal fins

Solution

Both dorsal and anal fins control the rolling and yawing movements of fish during swimming.Dorsal and anal fins are median fins located above and below the centre of mass of fishes, each having a moment arm relative to the longitudinal axis.

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Re-Attempt Weekly Quiz Competition

(i) Large curved claws	(1) Grasping
(ii) Nail like feet	(2) Scratching
(iii) Paddles like feet	(3) Swimming
(iv) Feet with three toes	(4) Perching

Adaptations in Living Organisms Test - 2

Result

Adaptations in Living Organisms Test - 2

Score

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Rank

-

SHARING IS CARING

Question 1

Cochlea and tympanum

Eustachian tube and nasal passage

Oval window and ear lobes

Ampullae and semi-circular canals

Solution

Question 2

Streamlined body

Large eyes

Clawed digits in hind limbs

Long and flexible neck

Solution

Question 3

Grasping

Scratching

Swimming

Climbing

Solution

Question 4

Nail like toes

Large curved claws

A long back toe

Feet with three toes

Solution

Question 5

(i) – (1), (ii) – (2), (iii) – (3), (iv) – (4)

(i) – (2), (ii) – (1), (iii) – (4), (iv) – (3)

(i) – (4), (ii) – (3), (iii) – (2), (iv) – (1)

(i) – (2), (ii) – (3), (iii) – (4), (iv) – (1)

Solution

Question 6

Flexible neck

Mucus coating on body

Streamlined body

Air sacs in the body

Solution

Question 7

Highly developed brain

Reduced right ovary

Warm blooded

Fixed neck

Solution

Question 8

Streamlined body

Flexible neck

Fins for locomotion

Water proof scales on the body

Solution

Question 9

Close to the heal

Lower region corresponding to hind legs

Along top middle line of trunk

At the end in the form of tail

Solution

Question 10

Caudal fin

Dorsal fin

Pectoral fin

Dorsal and anal fins

Solution

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