31.
Out of proteins, lipids and carbohydrates present in a cell membrane, what is true?

33.
Of the following taxonomic categories which is the most inclusive (i.e. is the highest in hierarchy)?

34.
Prothrombin which helps in clotting of blood is released by

36.
Most of the red, blue and purple colours of plants are due to a pigment called

37.
Plants developing in dry conditions are

38.
Plants growing on sand are called as

39.
Our skin, when exposed to excess sunlight, becomes dark. This is because of our skin pigments called

40.
Ramapithecus and Cro-Magnon man are considered

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