Some man-made fibres, too, are derived from naturally occurring polymers. For instance, rayon and acetate, two of the first man-made fibres ever to be produced, are made of the same cellulose polymers that make up cotton, hemp, flax, and the structural fibres of wood.
Significance of the birds in the old man
What organ integrates the brain nervous organs with the endocrine system? Hypothalamus
Enzymes are considered catalysts, they help reactants and can be used over and over
Answer:
so it won't get dirty
Explanation:
you don't want the Corona virus do you?
