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Animal Kingdom

Description: Animal Kingdom
Number of Questions: 20
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Tags: Animal Kingdom Basis of Classification Classification of Animals XI Biology Porifera Phylum Arthropoda Classification of Chordate Organisms Coelomate Organisms Phylum Cnidaria Phylum Ctenophora Phylum Platyhelminthes Phylum Aschelminthes Phylum Annelida Phylum Echinodermata
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In which of the following organisms are organs not associated to form functional systems, with each system concerned with a specific physiological function?

  1. Annelids

  2. Arthropods

  3. Molluscs

  4. Porifera

  5. Echinoderms

Show answer
Correct Option: D
Explanation:

This is the correct option. In Porifera, the cells are arranged as loose cell aggregates and organs have not associated to form functional systems.

Match the following:

 
a. Sponges 1. They exhibit organ level of organisation.
b. Coelenterates 2. They exhibit cellular level of organisation.
c. Platyhelminthes 3. They exhibit tissue level of organisation.

  1. a - 1, b - 3, c - 2

  2. a - 2, b - 3, c - 1

  3. a - 3, b - 2, c - 1

  4. a - 1, b - 2, c - 3

  5. a - 2, b - 1, c - 3

Show answer
Correct Option: B
Explanation:

This is the correct option. Sponges exhibit cellular level of organisation. Coelenterates exhibit tissue level of organisation. Platyhelminthes exhibit organ level of organisation.

The body of which of the following animals can be divided into identical left and right halves in only one plane?

a. Annelids b. Coelenterates c. Arthropods d. Echinoderms

  1. Only a and b

  2. Only a and c

  3. Only a and d

  4. Only b and c

  5. Only b and d

Show answer
Correct Option: B
Explanation:

This is the correct option. Annelids and arthropods exhibit bilateral symmetry. 

In which of the following animals does the developing embryo have a third germinal layer in between the ectoderm and endoderm?

a. Platyhelminthes b. Chordates c. Coelenterates

  1. Only a and b

  2. Only a and c

  3. Only b

  4. Only b and c

  5. Only c

Show answer
Correct Option: A
Explanation:

This is the correct option. Platyhelminthes and chordates are the animals in which the developing embryo has a third germinal layer, called the mesoderm, in between the ectoderm and endoderm.

Which of the following organisms belong to the phylum Porifera?

a. Euspongia b. Spongilla c. Gorgonia d. Meandrina

  1. Only a and b

  2. Only a and c

  3. Only a and d

  4. Only b and c

  5. Only c and d

Show answer
Correct Option: A
Explanation:

This is the correct option. Euspongia and Spongilla belong to the phylum Porifera. They reproduce sexually by formation of gametes and asexually by fragmentation.

Ctenophores, also known as comb jellies or sea walnuts, are exclusively marine organisms. Which of the following is not a property of Ctenophores?

  1. They are radially symmetrical organisms with tissue level of organisation.

  2. Their body bears four external rows of ciliated comb plates.

  3. Digestion is both extracellular and intracellular.

  4. Sexes are not separate in Ctenophores.

  5. Reproduction is only by sexual means.

Show answer
Correct Option: B
Explanation:

This is the correct option as this is not a property of Ctenophores. Ctenophores' bodies bear eight external rows of ciliated comb plates that help in locomotion.

Cnidarians exhibit two basic forms - polyp and medusa. Which of the following exhibit medusa form?

a. Hydra b. Adamsia c. Jellyfish d. Aurelia

  1. Only a and b

  2. Only a and c

  3. Only a and d

  4. Only c and d

  5. Only b and c

Show answer
Correct Option: D
Explanation:

This is the correct option. Jellyfish and Aurelia exhibit medusa form. They are umbrella-shaped and free-swimming.

Which of the following are bilaterally symmetrical, triploblastic endoparasites that are found in animals?

a. Taenia b. Pleurobrachia c. Ctenoplana d. Fasciola

  1. Only b and c

  2. Only a and c

  3. Only a and d

  4. Only a and b

  5. Only b and d

Show answer
Correct Option: C
Explanation:

Taenia or tapeworm and Fasciola or liver fluke are bilaterally symmetrical, triploblastic endoparasites that are found in animals. They belong to the phylum Plathelminthes.

Organisms of which of the following phyla have a water vascular system that helps in locomotion, capture and transport of food and respiration?

  1. Hemichordata

  2. Mollusca

  3. Echinodermata

  4. Chordata

  5. Annelida

Show answer
Correct Option: C
Explanation:

This is the correct option. The organisms of phylum Echinodermata have a water vascular system that helps in locomotion, capture and transport of food and respiration. For example, Asterias (starfish).

In which of the organisms of class Reptilia is the heart four-chambered?

  1. Lizard

  2. Viper

  3. Cobra

  4. Tortoise

  5. Crocodile

Show answer
Correct Option: E
Explanation:

This is the correct option. In crocodile, the heart is four-chambered.

Which of the following organisms have their body surface distinctly marked out into segments or metameres?

a. Nereis b. Pheretima c. Ancylostoma d. Wuchereria

  1. Only a and b

  2. Only a and c

  3. Only a and d

  4. Only b and c

  5. Only c and d

Show answer
Correct Option: A
Explanation:

This is the correct option. Nereis and Pheretima have their body surface distinctly marked out into segments or metameres. They belong to the phylum Annelida.

Which of the following organisms are characterised by the presence of milk-producing glands by which the young ones are nourished?

a. Macropus b. Equus c. Corvus d. Pavo

  1. Only a and c

  2. Only a and b

  3. Only a and d

  4. Only c and d

  5. Only b and c

Show answer
Correct Option: B
Explanation:

They both belong to the class Mammalia.

Match the following:

 
a. Urochordata 1. In this subphyla, notochord is present during the embryonic period.
b. Cephalochordata 2. In this subphyla, notochord extends from head to tail region and is persistent throughout the organism's life.
c. Vertebrata 3. In this subphyla, notochord is present only in larval tail.

  1. a - 1, b - 2, c - 3

  2. a - 3, b - 2, c - 1

  3. a - 2, b - 3, c - 1

  4. a - 2, b - 1, c - 3

  5. a - 3, b - 1, c - 2

Show answer
Correct Option: B
Explanation:

In the subphyla Urochordata, notochord is present only in larval tail. In the subphyla Cephalochordata, notochord extends from head to tail region and is persistent throughout the organism's life. In the subphyla Vertebrata, notochord is present during the embryonic period and replaced by the vertebral column in adult stage.

Animals having coelom are called coelomates. Which of the following animals are not coelomates?

  1. Molluscs

  2. Arthropods

  3. Annelids

  4. Platyhelminthes

  5. Echinoderms

Show answer
Correct Option: D
Explanation:

This is the correct option as Platyhelminthes are not coelomates.  Echinoderms possess coelom. This is a wrong option.

The organisms of which of the following classes can live in aquatic as well as in terrestrial habitats?

  1. Osteichthyes

  2. Chondrichthyes

  3. Cyclostomata

  4. Amphibia

  5. Reptilia

Show answer
Correct Option: D
Explanation:

This is the correct option. The organisms of Amphibia class can live in aquatic as well as in terrestrial habitats.

In which of the following phyla are sexes separate, i.e. males and females are distinct?

  1. Porifera

  2. Ctenophora

  3. Platyhelminthes

  4. Aschelminthes

  5. None of these

Show answer
Correct Option: D
Explanation:

This is the correct option. In phylum Aschelminthes, sexes are separate, i.e. males and females are distinct. Often females are longer than males.

Match the following:

 
a. Vectors 1. Limulus
b. Gregarious pest 2. Anopheles
c. Living fossil 3. Locusta

  1. a - 1, b - 2, c - 3

  2. a - 1, b - 3, c - 2

  3. a - 3, b - 2, c - 1

  4. a - 2, b - 3, c - 1

  5. a - 2, b - 1, c - 3

Show answer
Correct Option: D
Explanation:

This is the correct option. An example of vector is Anopheles. An example of gregarious pest is Locusta. An example of living fossil is Limulus.

Arthropoda is the largest phylum of Animalia. Which of the following is not a property of organisms of phylum Arthropoda?

  1. The body of these organisms is covered by chitinous exoskeleton.

  2. Arthropods have an organ level of organisation.

  3. Respiratory organs like gills, book gills or tracheal system are absent.

  4. Sensory organs are present.

  5. Their body consists of head, thorax and abdomen.

Show answer
Correct Option: C
Explanation:

This is the correct option as this is not a property of organisms of phylum Arthropoda.

Match the following:

 
Class Example
a. Cyclostomata 1. Scoliodon
b. Chondrichthyes 2. Petromyzon
c. Osteichthyes 3. Exocoetus

  1. a - 2, b - 1, c - 3

  2. a - 2, b - 3, c - 1

  3. a - 3, b - 2, c - 1

  4. a - 1, b - 2, c - 3

  5. a - 3, b - 1, c - 2

Show answer
Correct Option: A
Explanation:

This is the correct option. An example of class Cyclostomata is the Petromyzon. An example of class Chondrichthyes is the Scoliodon. An example of class Osteichthyes is the Exocoetus.

Cnidarians have tissue level of organisation and are diploblastic. Which of the following is not a Cnidarian?

  1. Obelia

  2. Pennatula

  3. Sycon

  4. Adamsia

  5. Physalia

Show answer
Correct Option: C
Explanation:

This is the correct option. Sycon or Scypha does not belong to the phylum Cnidarian. It belongs to the phylum Porifera.

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