A. Skin Fiber
B. Nails
C. Blood Cells
D. Muscle Cells

Submitted by: Muhammad Mehmood

Keratin is a type of structural protein found in your hair, skin, and nails. It’s especially important for maintaining the structure of your skin, supporting wound healing, and keeping your hair and nails healthy and strong.



Biology Mcqs
Biology McqsBiology Mcqs are from the different sections of Biology. which will help the students to get higher marks in biology subject. students can prepare for Medical Entry Test from our topic wise Multiple Choice question of Biology. These Mcqs will Help you to get higher marks especially in Biology Mcqs portion of test. Download Medical Entry Test App:

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