Question

Write one characteristics of each of following a) amphibian b) aves c) pisces

Answer 1

amphibians- cold blooded or poikilothermal animals. and they are ammonotelic in nature

aves- their bones are pneumatic bones(lack of bone marrow) make their bones light. they are urecotelic

pisces- they are ammonotelic except sharks(urecotelic) heart is two chambered.
both cold and warm blooded

Answer 2

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√ Amphibian 

→ Amphibia or Amphibian  refers to "double life", or life in water and on land. 

→ They have Three-chambered heart with two atria and one ventricle.

√ Aves

→ Aves are warm-blooded animals bearing three clawless digits. 

→ Feathers are the defining characteristic of Aves, found on every living species of bird and no other class of animal.

√ Pisces

→  They are water living animals.

→ Their skin is covered with scales or plates.

→ They obtain oxygen dissolved in water by using gills and the body is streamlined.


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