Hi these structures would include the skin, nails, hair, glands, and nerves.
Hope this helped you.
This is not a Biology question, but I will still answer this for you, but please next time label your questions properly. The answer is C. Perpendicular lines.
Cellulose molecules are arrange parallel to each other with hydrogen bonds joining them it forms a stronger cable like structure of support this is important as it keeps The plant straight up right
