Question

Explain how animals in Vertebrata are classified into further subgroups.

Answer 1

Answer:

Vertebrates are further classified according to several criteria like exoskeleton, respiratory organs, method of giving birth, number of chambers in heart, mode of living etc. They are further classified into classes Pisces, Amphibia, Reptilia, Aves and Mammals.Animals in Vertebrata are classified into five classes: ... These animals have a dual mode of life. In the larval stage, the respiratory organs are gills, but in the adult stage, respiration occurs through the lungs or skin. They lay eggs in water.

Explanation:

Animals of vertebrata are further classified into sub-groups on the basis of following features:

1) Nature of heart(two, three or four chambered).

2)Presence of exoskeleton eithier in the form of scales, feather or hair

3) Mode of respiration (By skin ,lungs or gills

4) Presence of mammary glands.

5)Reproduction (Egg laying or give birth to young once

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Answer 2

Answer:

Animals in Vertebrata are classified into five classes: ... These animals have a dual mode of life. In the larval stage, the respiratory organs are gills, but in the adult stage, respiration occurs through the lungs or skin.

Explanation:

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