Question

cribe double circulation with a simple flow chart. Why is it necessary in human
s ?
rentiate transport in xylem and transport in phloem
does the circle of sun appear flat at the time of rising and setting of the sun ?
e the law that the figure shows represents label (1) and (II) in the figure according to
26.
1
2
1
PART-D
(Marks​

Answer 1

Answer:

Explanation:

This means that during a single cycle, the blood goes twice in the heart. There are two loops in which blood is circulated. ... This double circulatory system is important because it ensures provision of oxygenated blood to the muscle and not a mixture of oxygenated and de-oxygenated blood.