Answer:
(i) The leaves of plants contain green pigments called
chlorophyll which is necessary for photosynthesis. Plants reflect green light
of sunlight, so they look green.
(ii)
The skin of earthworm is quite thin and moist and has rich blood supply so, it
respires through its skin.
(iii)
An organism requires nutrients like carbohydrates, fats, proteins, minerals and
vitamins for the growth, reproduction and metabolic activities, so nutrition is
necessary for an organism.
(iv)
We boil the leaf in alcohol to remove chlorophyll from green leaf.
You need to login to perform this action.
You will be redirected in
3 sec
