Question

The eg for poikilotherm as well as two chambered heart

Answer 1

ANSWER:

The members of class pisces are the example for poikilotherms and contain two chambered hearts.

Example: Fishes

EXPLANATION:

POIKILOTHERMS:

• These are also called cold blooded animals.

• These organisms are unable to regulate their body temperature.

• They can not maintain homoestatic condition of temperature.

• Their temperature changes with the change in external temperature.

• Examples for poikilotherms are fishes, amphibians and reptiles.

CHAMBERS OF HEART:

• The chambers of heart are atria or auricle and ventricle.

• In two chambered heart , there is one auricle and one ventricle.

• The Sinus venosus collects deoxygenated blood from the body.

• The deoxygenated blood reach the auricle through ventricle.

• The deoxygenated blood reach gills for oxygenation .

• Since the blood passes through the heart once , it is called single circulation.

• Example: Fishes