English, asked by ranarekharana69, 20 days ago

मेरी बहिनें स्कूल में शोर मचाती है​

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Answered by SmitaMissinnocent
1

Answer:

Nereis, has a primitive circulatory system in which the blood is propelled by slow peristaltic waves. In general, the blood moves forward in the dorsal vessel and rearward in the ventral vessel. ... In particular, the oxygenated blood from the parapodia is simply mixed with other blood.

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