Question
Biology Question on Kingdom Animalia
The horns of Rhinoceros are composed of
A
chitin
B
bone
C
keratin
D
cartilage.
Answer
keratin
Explanation
Solution
The horns of Rhinoceros are composed of keratin. It is generally known as keratin fibre horn. It has no skeletal element and made by keratinized cells of epidermis and consists of matted keratin fibres bound together. It is a permanent epidermal structure and if broken it grows again.