In the evolution of animals a heart to p...

In the evolution of animals a heart to pump the blood is found for the first time in

A

Annelids

B

Roundworms

C

Arthropods

D

Flat worms

Verified by Experts

The correct Answer is:

A

Closed circulatory system is found in Annelida. Blood is red in colour because of the presence of red pigment called hemoglobin dissolved in plasma.

Similar Questions

Explore conceptually related problems

Heart to pump blood evolved for the first time in

In the history of animal science, the person who for the first time recognized the importance of fossils as evidence of evolution was :

In Prawn, the heart pumps

Classification of animals based on with and without blood was first made by

Deoxygenated blood is pumped by the heart in

Heart pumps only impure blood in case of