Diversity in Living Organisms Test

Result

Diversity in Living Organisms Test - 51

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Weekly Quiz Competition

Question 1
1 / -0

Claws are retractile in

A
Cats

B
Dogs

C
Fox

D
Hyaena

Solution

Cats have retractile claws which can be retracted or extended by pressurizing the end bone of the toe whenever required.
So, the answer is 'Cats'.
Question 2
1 / -0

Seal (Phoca) is

A
Marine mammal

B
Carnivore

C
Both A and B

D
Swimmer as well as fast runner

Solution

Seal (Phoca Vitulina) are widely distributed and diverse clade of carnivores. They are inhabited near sea shore so, they are marine.
So, the answer is 'Both A and B'.
Question 3
1 / -0

Sea Lion is

A
Otter

B
Walrus

C
Seal

D
None of the above

Solution

Sea lions are aquatic mammals. They range from subarctic to subtropical waters of the Northern and the Southern hemispheres. They usually weigh hundreds of kilograms and are considered heavy feeders.
Seals are also marine animals but vary from sea lions in their physical appearance. The most distinct of them being the absence of visible ear flaps. Walrus and otters are also two animals very different from sea lions.
So, the correct answer is 'None of the above'.
Question 4
1 / -0

In Sea Cow / Manatee

A
Hind limbs are absent

B
Fore limbs are modified into paddles.

C
Tail has fin

D
All the above

Solution

Sea cow was a large aquatic animal which is now extinct which once inhabited near shore areas of Komandor. Characteristics of Sea cow are
Hind limbs were absent
Fore limbs were modified into paddles
Tail had fins.
So, the answer is 'All of the above'.
Question 5
1 / -0

Big Cat which can climb a tree is

A
Panthera leo

B
Panthera pardus

C
Panthera tigris

D
Both B and C

Solution

(A) Panthera leo is the biological name of lion.
(B) Panthera paradus is the biological name of leopard.
(C) Panthera tigris is the biological name of tiger.
Only leopard can climb a tree.
So, the answer is 'Panthera paradus'.
Question 6
1 / -0

Carnivorous teeth adapted for cutting are

A
Molars

B
Carnassial

C
Premolars

D
Canines

Solution

(A) Molars help in the mastication of food.
(B) Carnassials he[p in the tearing of meat.
(C) Premolars help in the grinding of food.
(D) Canines help in the seizing and stabbing of prey.
So, the correct answer is 'Carnassials'
Question 7
1 / -0

In Whale and Dolphin, the tail bears

A
Dorsal fin

B
Caudal fin

C
Two vertical fluke

D
Two horizontal flukes

Solution

Whales and Dolphins have two horizontal flukes as they are evolved from the terrestrial animal who walked on four limbs. The four limbs are flexible to move up & down, so, the two flukes are evolved from these locomotory structures.
So the answer is 'Two horizontal flukes'.
Question 8
1 / -0

Indian Pangolin is characterised by

A
Absence of teeth

B
Long protrusible tongue

C
Stones in its stomach

D
All the above

Solution

Indian Pangolin, commonly known as scaly anteater, is an anteater commonly found in the Indian subcontinent. It lacks teeth and hence has a stomach that is modified to make up for the absence of teeth. Their food is digested in the stomach with the aid of the stones and pebbles that they ingest along with food. They also have a long protrusible tongue that helps them in collecting ants to eat.
So, the correct answer is 'All the above'.
Question 9
1 / -0

In Procupine, hair of the back are modified into

A
Scales

B
Horns

C
Spines

D
Plates

Solution

The presence of hairs is one of the defining features of mammals. Every mammal has hair on its body at some stage of their life. In some animals, hairs are modified into other structures that have a role in their offence and defence functions. Spines are one such example. They are enlarged and stiffened modifications of hairs and have an outer covering of keratin. In porcupines, they are of different lengths across the body and fall out easily and break on bending.
So, the correct answer is 'Spines'.
Question 10
1 / -0

Beaver is harmful to vegetation as it feeds over

A
Leaves

B
Tender shoots

C
Fruits

D
Bark

Solution

Beavers are one of the largest rodents found all over the world. They are mainly found in areas along rivers, small streams, lakes, and marshes. They are considered a threat to vegetation as they cut down trees and other available vegetation to either consume it as food or to use them as building materials for their dams. They peel the bark of trees using their incisor to make them weak and further chop them down for their own use.
So the correct option is 'Bark'.

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Re-Attempt Weekly Quiz Competition

Diversity in Living Organisms Test - 51

Result

Diversity in Living Organisms Test - 51

Score

-

Rank

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SHARING IS CARING

Question 1

Cats

Dogs

Fox

Hyaena

Solution

Question 2

Marine mammal

Carnivore

Both A and B

Swimmer as well as fast runner

Solution

Question 3

Otter

Walrus

Seal

None of the above

Solution

Question 4

Hind limbs are absent

Fore limbs are modified into paddles.

Tail has fin

All the above

Solution

Question 5

Panthera leo

Panthera pardus

Panthera tigris

Both B and C

Solution

Question 6

Molars

Carnassial

Premolars

Canines

Solution

Question 7

Dorsal fin

Caudal fin

Two vertical fluke

Two horizontal flukes

Solution

Question 8

Absence of teeth

Long protrusible tongue

Stones in its stomach

All the above

Solution

Question 9

Scales

Horns

Spines

Plates

Solution

Question 10

Leaves

Tender shoots

Fruits

Bark

Solution

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