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Biology

Biology
The weight of the brain in the total weight of the body is about

0.02
0.04
0.05
0.03

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Biology
Which one of the following organisms is dependent on saprophytic mode of nutrition?

Cladophora
Ulothrix
Riccia
Agaricus

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Biology
The water and mineral salts are transported to the various organs by which of the following?

Xylem
Phloem
Cortex
Cambium

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Biology
Rh factor is discovered by

Leuen hook
Landsteiner
Landsteiner and Weiner
Weiner

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Biology
The functional connection between two neurons is a

Neuroglia
Synapse
Dendrites
Axon

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

carotene
melanin
flavoxanthin
Xanthophyll

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