Biology, asked by ratanmishra219, 11 months ago

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Write any four salient features of Class-Aves with two examples.
Define "Alteration of generation", with one example,
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Answers

Answered by pragati3668
1

Answer:

four silent feature of class aves are:

•there skin is dry without gland except the oil gland at the base of the tail.

•Endoskeleton is fully ossified and the long bone are hollow with air cavities.

• the digestive tract of bird has additional chamber, the crop and gizzard.

•they are homoiothermous.

eg:corvus, Columba

alternation of generation -the cindarins exist in both the form exhibits alternation of generation i.e. polyps produce medusae asexually and medusae form the polyps sexually. eg-obelia

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