Question :

Explain how animals in Vertebrata are classified into further subgroups.

Subject

Science

Standard

Class 9

Views

1044

Asked By

Krishav

Chakrika
Answer / Solution

The Vertebrata is divided into two superclasses, these are

  1. Pisces
  2. Tetrapoda

Animals of Pisces have streamlined body with fins and tails to assist in swimming. Animals of Tetrapoda have four limbs for locomotion.

Tetrapoda is further classified into following classes:

  • (a) Amphibia: 
    • Are adapted to live in water and on land. Can breathe oxygen through skin when under water.
  • (b) Reptilia: 
    • These sire crawling animals. Skin is hard to withstand extreme temperatures.
  • (c) Aves: 
    • Forelimbs are modified into wings to assist in flying. Beaks are present. Body is covered with feathers.
  • (d) Mammalia: 
    • Mammary glands present to nurture young ones. Skin is covered with hair. Most of the animals are viviparous.
Knowledge
Answer / Solution

The Vertebrata is divided into Pisces and Tetrapoda.

Animals of Pisces have streamlined body with fins and tails to assist in swimming and Animals of Tetrapoda have four limbs for locomotion.

Again, Tetrapoda is further classified into four classes

  1. Reptilia: These sire crawling animals. Skin is hard to withstand extreme temperatures.
  2. Amphibia: Are adapted to live in water and on land. Can breathe oxygen through skin when under water.
  3. Mammalia: Mammary glands present to nurture young ones. Skin is covered with hair. Most of the animals are viviparous.
  4. Aves: Forelimbs are modified into wings to assist in flying. Beaks are present. Body is covered with feathers.

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