Tag: biodiversity and classification

Questions Related to biodiversity and classification

Maximum nutritional diversity is found in the group _________.

  1. Fungi

  2. Animalia

  3. Monera

  4. Plantae


Correct Option: B
Explanation:

Fungi take their nutrition by absorbing organic compounds from the surrounding environment. Monera kingdom contains unicellular prokaryotic organism. Kingdom Plantae consists of multicellular photosynthetic eukaryotes. Kingdom Animalia has multicellular eukaryotic  organisms which consume organic matter and hence maximum nutritional diversity is found in this group.

The correct answer is B.

Characteristics of animalia is 

  1. Absence of cell wall

  2. Presence of chlorophyll

  3. Indirect dependence on autotrophs

  4. None of these


Correct Option: A
Explanation:
Characteristics of members of kingdom Animalia are:
They are multicellular organisms that do not possess chlorophyll.
They are eukaryotic organisms.
The cell wall is absent. so option A is correct

Animals with self fertilization is

  1. Paragonimus

  2. Dugesia

  3. Taenia solium

  4. None of the above


Correct Option: C
Explanation:

In Taenia solium both self-fertilization and cross-fertilization occur. In self-fertilization, sperms produced in proglottid fertilize the ova produced in the same proglottid. In cross-fertilization, sperms produced in a proglottid fertilize ova produced in another mature proglottid of the same worm. In paragonimus and dugesia self-fertilization is absent.

Tetrapods include 

  1. Amphibia, reptilia, aves and mammalia

  2. Reptilia, mammalia and amphibia

  3. Amphibia and reptilia

  4. Aves and mammalia


Correct Option: A

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.

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'.

Which of the following characteristics does no species of animals posses during some phase of its life cycle?

  1. Mobility

  2. Autotrophy

  3. Responsiveness

  4. Metabolism


Correct Option: B
Explanation:

Autotrophy is the ability of organisms to synthesise their own food from inorganic materials using light or chemical energy. This is seen in all green plants, some bacteria and algae. Animals, however, have a heterotrophic mode of nutrition. They acquire their food from other organisms. Animals, therefore, do not show autotrophy. 

So, the correct option is 'Autotrophy'.