Biology
Which of the following vitamins are water soluble?

Vit. B & Vit. C
Vit. A & Vit. K
Vit. A & Vit. B
Vit. C & Vit. D

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Biology
The main function of the inner bark of a woody plant is to

Act as a membrane impermeable to water and gas
Transport food from the leaves to the other parts of the plant
Protect the plant from herbivorous animals
Transport minerals and water from the roots to the leaves

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