MEDIUM
7th CBSE
IMPORTANT
Earn 100

Draw well-labelled diagrams to show a section of a vein and an artery.

Important Questions on Transport of Substances in Animals and Plants

MEDIUM
7th CBSE
IMPORTANT
NEW SCIENCE In Everyday Life>Chapter 10 - Transport of Substances in Animals and Plants>Exercises>Q 1
Why do the left ventricles of the heart have thicker walls than the right ventricles?
HARD
7th CBSE
IMPORTANT
NEW SCIENCE In Everyday Life>Chapter 10 - Transport of Substances in Animals and Plants>Exercises>Q 2
Mona falls short of breath every time she climbs up a flight of stairs. Can you guess why?