Hairs are mostly fibrous proteins and are composed of keratin, and also the main constituent of skin, nails, wool, woof, feathers etc.
Keratin is the essential fibrous protein which has a structural and protective functions in the epithelium.
Answer:
I think it should be C and D both.
Answer:
animals who eat the bark can spread it.
Explanation:
logic
Answer:
vacuole
Explanation:
In plant cells, temporary storage for food enzymes and waste products is provided by the Vacuole