The study of relation of animals and plants to their surroundings is called__________
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DNA stands for _____.
What is the shape of the two guard cells which enclose stomata?
Which enzyme is present in all members of the animal kingdom except Protozoa?
Night Blindness is caused by deficiency of which of the following Vitamin?
Synapse gap is present between which of the following?
The swollen bottom part of the carpel in a flower is ______.
The human faeces is yellow in colour due to the presence of a pigment called