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.
In a complete dominance monohybrid cross between a pure breeding yellow-flowered plant Y and a ...
In plants, the structures that play roles similar to the arteries and veins of animals are the ...
The following are connected with the movement of a reflex action (1) Central nervous (2) Muscles ...
Regarding the number of individuals, which of the following taxa is most inclusive? ...
Which of the following factors does not control population growth? ...
The major mineral present in the shell of Molluscs is________ ...
which of the following practices will not maintain soil fertility? ...
In the tapeworm the suckers on the scolex are used for ...
The developing embryo is usually contained in the part labelled ...
Variation which exhibits a wide range from one extreme to the other is ...