. Explain how animals in Vertebrata are classified into further subgroups

Best Answer

Answer: Vertebrata has two subclasses namely



Wherein, organisms belonging to Pisces subclass have a streamlined body with tails and fins which help them in their movement (swim) whereas, the Tetrapoda species have four limbs for their movement.

Furthermore, The tetrapod animals are classified as:

1. Amphibia: The animals belonging to this group are adaptive in nature. They dwell both in the land as well as in water. They show the presence of specialized organs, which allows them to breathe underwater.

2. Reptilia: The animals belonging to this class crawl. Their skin is very thick and withstands extreme temperatures.

3. Aves: The forelimbs of these organisms are modified which help them in their flight. They lack teeth and instead have a beak and feathers that cover up their body.

4. Mammalia: The animals belonging to this group show nurturing skills as they contain mammary glands to support them. Their skin is covered with hair and most of them are viviparous in nature

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