Tag: criteria for new system of classification

Questions Related to criteria for new system of classification

Which is the smallest taxonoic group having vertabral column, ventral heart, pulmonary respiration and two pairs of legs?

  1. Chordata

  2. Gnathostomata

  3. Vertebrata

  4. Tetrapoda


Correct Option: D
Explanation:

Superclass Tetrapoda comprises the first four-limbed vertebrates which include amphibians, reptiles, mammals, birds and some extinct fishes. It is characterized by the cranium, vertebral column, ventral heart and pulmonary respiration.

 Hence, option D is correct.

The plants and animals living in a given area form

  1. Biological community

  2. Ecotone

  3. Biome

  4. Consociation


Correct Option: A
Explanation:

Biological community is the assemblage of interdependent and interacting populations of different species present in an area.

Identify the molluscs without shell.

  1. Snail

  2. Oyster

  3. Slug

  4. Lobster


Correct Option: C
Explanation:

Lobsters, snails and oysters all have significantly visible shells on their bodies.

Slugs do not have any shell
So the correct answer is 'Slug'. 

Which of the following worms are categorized as thread worms?

  1. Tapeworm

  2. Earthworm

  3. Roundworm

  4. None of the above


Correct Option: C
Explanation:

Threadworms are a type of roundworms.

Common characteristics of roundworms that confirm this are:
1. First organisms with organ level classification
2. They are often parasitic
3. Triploblastic
4. Bilaterally symmetrical
So the correct answer is 'Roundworms'.

Which of the following animal phylum includes segmented worms?

  1. Annelida

  2. Arthropoda

  3. Mollusca

  4. None of the above


Correct Option: A
Explanation:

Molluscs do not have segmentation in their bodies.

Arthropoda has segmentation as a character but it does not include worms.
Annelids is the phylum of the segmented worms.
Some characteristics of Annelids are:
1. Segmented bodies.
2. Bilaterally symmetrical.
3. First organisms with organ level classification.
So the correct answer is 'Annelida'.

Sea cucumber belongs to phylum 

  1. Porifera

  2. Mollusca

  3. Echinodermata

  4. None of the above


Correct Option: C
Explanation:

Sea cucumber belongs to Echinodermata.

Some characteristics of Echinodermata are:
1. Radial symmetry
2. Triploblastic
3. Exclusively marine
4. Presence of Exoskeleton
So the correct answer is 'Echinodermata'.

Animals do not show diversity in ______.

  1. Volume

  2. Life style

  3. Shape

  4. Cell


Correct Option: A
Explanation:

The animal kingdom is incredibly diverse, most animals limits on animal size and shape and lifestyle.

So, the correct option is 'Volume'.

Choose the correct answers from the alternatives given:
Which one of the following is not a characteristic of the organisms included in the Kingdom Animalia?

  1. Multicellularity

  2. Presence of eukaryotic cells without walls

  3. Obtaining nutrients by ingestion

  4. Storage of carbohydrates as starch


Correct Option: D
Explanation:

Animals show different types of body organization. They are multicellular.
Animals can be Asymmetric, Radial and Bilateral symmetric.  Most of the animals are triploblastic. They obtain nutrients by ingestion, so they have a heterotrophic mode of nutrition. They store glycogen as the reserve food material.
Hence, the correct answer is 'Storage of carbohydrate as starch'.

Mark the odd one in the series.
Plantae, Chordata, Tracheophyta, Eucalyptus

  1. Plantae

  2. Chordata

  3. Tracheophyta

  4. Eucalyptus


Correct Option: B
Explanation:

Plantae- Plant kingdom

Chordata- Animal phylum
Tracheophyta-Plant phylum
Eucalyptus- Plant genus
Hence, of all the above only chordata is a rank associated with the animals and the rest are all associated to plants.
So, the correct answer is 'Chordata'.

Which of the following is correct matching set of Phylum and its three examples?

  1. Annelid - Nereis, Pheretima and Apis

  2. Echinodermata - Ophiura, Antedon and Cucumaria

  3. Mollusca - Dentalium, Pinctada, Hirudinaria

  4. Aschelminthes - Ancylosytoma, Wuchereria and Asterias


Correct Option: B
Explanation:
  • Ophiura or the serpent star is a species of the brittle star in the order Ophiurida belonging to the phylum Echinodermata and class Ophiuroidea.
  • Antedon is a genus of free-swimming, stemless crinoids belonging to the phylum Echinodermata and class Crinoidea.
  • Cucumaria is a genus of sea cucumbers belonging to the phylum Echinodermata and class Holothuroidea.
  • Hence Echinodermata - Ophiura, Antedon, and Cucumaria is a correct matching set of Phylum and its three examples.
  • So, the correct answer is 'Echinodermata - Ophiura, Antedon, and Cucumaria'.