Protection of the body cells of mammals against ultraviol...
Protection of the body cells of mammals against ultraviolent rays of the sun is brought about by
keratin
melanin
sebum
scales
Correct answer is B
No explanation has been provided for this answer.
Which of the following structures are visible in the cell of a plant during mitosis? ...
Which of the following enzymes is not one of the main classes of enzymes? ...
In the egg of a bird, the embryo is located in the ...
The part labelled II represents the ...
During germination of seeds water is taken by the process of ...
Density, mortality rate, and birth rate are the factors that affect ...
Primary growth in plants is brought about by the activity of the ...
A seedling grown in the dark is likely to be ...
A relationship between living organisms which is of mutual benefit is ...