MEDIUM
7th CBSE
IMPORTANT
Earn 100

The main metabolic waste in humans.
(a)
Urea
(b)
Uric acid
(c)
Ammonia
(d)
None of these

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Important Questions on Transportation in Plants and Animals
MEDIUM
7th CBSE
IMPORTANT

EASY
7th CBSE
IMPORTANT

MEDIUM
7th CBSE
IMPORTANT

EASY
7th CBSE
IMPORTANT

EASY
7th CBSE
IMPORTANT

MEDIUM
7th CBSE
IMPORTANT

MEDIUM
7th CBSE
IMPORTANT

EASY
7th CBSE
IMPORTANT
