Question

9)Justify the statements given below.
a)Smell can be detected only in the presence of mucus.
b)Persons with colour blindness cannot distinguish between green and red colours

Answer 1

Answer:

Smell receptors in the human nose detect smells with the help of a thin mucus layer, which dissolves scents and uses chromatography.

People with deuteranomaly and protanomaly are collectively known as red-green colour blind and they generally have difficulty distinguishing between reds, greens, browns and oranges. They also commonly confuse different types of blue and purple hues.

Explanation:

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Answer 2

Answer:

a - false

b-true

Explanation:

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