Explanation:
Cellulose, hemicellulose and lignin form structures called microfibrils, which are organized into macrofibrils that mediate structural stability in the plant cell wall.
The most important biological role of hemicelluloses is their contribution to strengthening the cell wall by interaction with cellulose and, in some walls, with lignin.
Answer:
(B)iology
Explanation:
Biology is a branch of science that studies about the living organisms.
You may have to enlarge it but here you go!
The answer is cervix. It is cylindrical in shape and found
at the base of the uterus and where the
vagina begins. It is 2 – 3 cm long. The cervix enlargens during pregnancy to
allow the passage of the fetus during childbirth.
It is also a conduit for sperm from the vagina to the uterus as they swim
upstream to fertilize the egg.