Which blood vessel of the heart will have the maximum content of Oxygen and why?

What is the normal content of urea in blood?

Which blood vessel brings waste products into the kidney?

Which hormone is secreted by the heart?

Which of the following will have maximum depression in freezing point?

An endothermic reaction is one in which heat content of

Explain why pure water has the maximum water potential.

Why do the veins have valves?

Motherand father of a personwith'O' blood group .have 'A' and 'B' blood group respectively. What would be the genotype of both mother and father?

The direction of blood flow in the heart of cockroach is