MEDIUM
7th CBSE
IMPORTANT
Earn 100
Veins have valves to allow blood to flow in one direction only. Arteries do not have valves. Yet the blood flows in one direction only. Explain why?
Important Questions on Transportation in Animals and Plants
EASY
7th CBSE
IMPORTANT
Hari donated a kidney to his mother as both her kidneys had stopped functioning due to an infection. Why is the functioning of the kidney essential?
EASY
7th CBSE
IMPORTANT
Hari donated a kidney to her mother as both her kidneys had stopped functioning due to an infection. What values are shown by him?
