There has been an increase in the number | Class 11 Biology Chapter Animal Kingdom, Animal Kingdom NCERT Solutions

Question:

There has been an increase in the number of chambers in heart during evolution of vertebrates. Give the names of the class of vertebrates having two, three or four-chambered heart.

Answer:

Two chambered heart: Chondricthyes and Osteicthyes. They contain one auricle and one ventricle; sinus venosus and conus arteriosus are present.

Three chambered heart: Amphibia and Reptilia. They contain two auricles and one ventricle.

Four chambered heart: Aves and Mammalia. They contain two auricles and two ventricles.

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Welcome to the NCERT Solutions for Class 11 Biology - Chapter . This page offers a step-by-step solution to the specific question from Excercise 0 , Question 3: There has been an increase in the number of chambers in heart during evolution of vertebrates. Give ....

There has been an increase in the number | Class 11 Biology Chapter Animal Kingdom, Animal Kingdom NCERT Solutions

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