Diversity in Living Organisms Test

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Diversity in Living Organisms Test - 79

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Weekly Quiz Competition

Question 1
1 / -0

Choose the correct match.

A
Aves - Pneumatic bones

B
Reptiles - Four-chambered heart

C
Amphibia - Scales on body

D
Protochordata - Persistent notochord

Solution

Correct Option: A
Explanation:
Pneumatic bones are defined as light weight hollow bones. They are mostly found in Birds, i.e phylum Aves. They help in flight and respiration.
In Reptiles.
Most Amphibians have scales on the body. In protochordata notochord is present only during the larval stage, whereas in cephalochordata it is persistent.
Question 2
1 / -0

Which animal is in phylum Platyhelminthes?

A
Intestinal worm (Ascaris)

B
Planaria

C
Elephant's leg worm (Filaria worm)

D
Eye worm (Loa loa)

Solution

Platyhelminthes very commonly known as flatworms or tapeworms, these animals are soft-bodied invertebrate animals.
Flatworms were once divided into three groups. The mostly free-living Turbellaria include the planarian, Dugesia, shown above; these are found in the oceans, in fresh water, and in moist terrestrial habitats, and a few are parasitic.
Question 3
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Assertion : Nematodes and tunicates show auxetic growth.

Reason : In these animals, growth occurs only by increases in size of cells and not number of cells.

A
Both Assertion and Reason are true and Reason is a correct explanation of Assertion

B
Both Assertion and Reason are true but Reason is not a correct explanation of Assertion

C
Assertion is true but Reason is false

D
Both Assertion and Reason are false

E
Assertion is false but reason is true.

Solution

In the Auxetic category of growth, the volume of the body increases due to the growth of body cells in their size without any change in the number of cells. It involves only cell growth and no cell reproduction. It is a rare type of growth and is found in a few nematodes (Ascaris), rotifers, tunicates (Herdmania) etc.
So the correct option is A.
Question 4
1 / -0

The advancement of cnidarians over Porifera is

A
True germ layers

B
Muscle cells

C
Indefinite symmetry

D
Both A and B

Solution

Porifera have a cellular level of an organization whereas Cnidaria has tissue level of organization. Thus, they all have two germ layers as epidermis (outer) and gastrodermis (inner) with a hollow body cavity, called as gastrovascular cavity and so are true layers. They have muscle cells, which helps in locomotion. Therefore, the correct answer is option D.
Question 5
1 / -0

What is common between parrot, platypus and kangaroo ?

A
Ovoparity

B
Homoiothermy

C
Toothless jaws

D
Functional post-anal tail
Question 6
1 / -0

Cinchona quinine was first discovered at

A
Portugal

B
Peru

C
Poland

D
Central Asia

Solution

Quinine is obtained from Cinchona officinalis, C. calisaya bark. Which was first discovered at 'Peru'.
Question 7
1 / -0

In which of the following class of Reptilia, the skull posses a solid roof?

A
Anapsida

B
Diapsida

C
Parapsida

D
Synapsida

E
Both C and D

Solution

Anapsida includes amniotes whose skull does not have openings near the temples. They includes turtles and all their extinct relatives.
Parapsida includes organisms or reptiles in which the skull has two dorsal temporal openings which includes the ichthyosaurs and related extinct forms.
Diapsida includes the group of amniote tetrapods that developed two holes in each side of their skull. They include crocodiles, lizards, snakes, tuatara, birds and nonavian dinosaurs.
Synapsida includes mammals and every animal more closely related to mammals than to other living amniotes. They were the largest terrestrial vertebrates in the Permian period 299 to 251 MYA.
Therefore, the correct answer is 'Anapsida'.
Question 8
1 / -0

An opening serving both as mouth and anus is found in

A
Coelenterates and porifers

B
Coelenterates and aschelminthes

C
Coelenterates and annelids

D
Coelenterates and platyhelminthes

Solution

Option-(D) Coelenterates and platyhelminthes.
Animals such as those who only have one opening or exit to their gastrointestinal system it becomes rather difficult to say which is most closest. Coelenterates, Platyhelminthes have an opening serving both as mouth and anus.
Question 9
1 / -0

Which of the following options is correct about Indian alligator and Indian giant squirrel?

A
Both are examples of extinct species.

B
Both are found in Satpura National Park.

C
Both are examples of endemnic species.

D
Both are examples of exotic species.

Solution

Endemic species of a region are those species that are naturally not found anywhere else then the particular region. E.g., Indian alligator and Indian giant squirrel are endemic to India and are naturally not found anywhere else. However, they can be kept and preserved under controlled suitable conditions.
Question 10
1 / -0

Insects and houseflies have bodies that are differentiated into head,thorax and abdomen.They havejoint legs but no vertebral column.Now,in which phylum would you classify these animals?

A
Annelida

B
Birds

C
Arthropoda

D
Mollusca

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Diversity in Living Organisms Test - 79

Result

Diversity in Living Organisms Test - 79

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SHARING IS CARING

Question 1

Aves - Pneumatic bones

Reptiles - Four-chambered heart

Amphibia - Scales on body

Protochordata - Persistent notochord

Solution

Question 2

Intestinal worm (Ascaris)

Planaria

Elephant's leg worm (Filaria worm)

Eye worm (Loa loa)

Solution

Question 3

Both Assertion and Reason are true and Reason is a correct explanation of Assertion

Both Assertion and Reason are true but Reason is not a correct explanation of Assertion

Assertion is true but Reason is false

Both Assertion and Reason are false

Assertion is false but reason is true.

Solution

Question 4

True germ layers

Muscle cells

Indefinite symmetry

Both A and B

Solution

Question 5

Ovoparity

Homoiothermy

Toothless jaws

Functional post-anal tail

Question 6

Portugal

Peru

Poland

Central Asia

Solution

Question 7

Anapsida

Diapsida

Parapsida

Synapsida

Both C and D

Solution

Question 8

Coelenterates and porifers

Coelenterates and aschelminthes

Coelenterates and annelids

Coelenterates and platyhelminthes

Solution

Question 9

Both are examples of extinct species.

Both are found in Satpura National Park.

Both are examples of endemnic species.

Both are examples of exotic species.

Solution

Question 10

Annelida

Birds

Arthropoda

Mollusca

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