Biology, asked by saurav5029, 10 months ago

(a) How many types of blood vessels are there in the human body? Name them.
(b) Why does the heart need valves?

Answers

Answered by Mangalasrinivasan949

2

Answer:

the types of blood vessels are arteries and veins..

the heart needs valves as it prevents mixing of deoxygenated and oxygenated blood...

hope it helps u dear

Previous Question

Next Question

Similar questions

English, 5 months ago

the maharaja had killed all the tigers found within his state true or false...

Science, 5 months ago

9.When caterpillar emergs from an egg it is not hungry. True False...

English, 5 months ago

dc paul nhi kaul......xd......

Chemistry, 10 months ago

What happens to (a) the H+ ions, and (b) temperature of the solution, when an acid is neutralised?

Biology, 10 months ago

A dialysis machine contains long tubes coiled in a tank containing dialysing solution (i) Of what substance are the tubes made? (ii) What does the dialysing solution contain? (iii) Name the main waste which passes into the dialysing solution.

English, 1 year ago

Write application to your class teacher telling about your inability intalkin your test of math scheduled on 27 December request her to allow you to give on 16 January 2019...

Math, 1 year ago

Rs.18000 for 5/2years at 10%per annum compounded annually...

History, 1 year ago

Gandhiji Swadeshi movement note...