What do porcupine quills, pangolin scales, lion's claws, goose feathers and yak hooves have in common?

They are made of cellulose

No worries! We‘ve got your back. Try BYJU‘S free classes today!

They are made of keratin

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

They secrete a substance called ambergris

No worries! We‘ve got your back. Try BYJU‘S free classes today!

None of this

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B They are made of keratin
Keratin is a protein deposited in the epidermal cells which protect the epithelial cells from damage or stress.
It is an important structural material that makes up the hair, horns, claws, hooves, and nails etc.
So, the correct answer is 'They are made of keratin'.

Suggest Corrections