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

Question : In the evolution of animals a heart to pump the blood is fo

1.	Question : In the evolution of animals a heart to pump the blood is found for the first time in
Answer» Annelids Roundworms Arthropods Flat worms Solution :In EARTHWORM, an annelid, 4 pairs of THICK MUSCULAR, pulsatile hearts are PRESENT.