Correct answer: Halftone
The halftone is a reprographic technique, which uses continuous imaginary tone by the use of dots, which vary in size or in spacing.
Example: The shades of gray in print are produced by breaking the image of the object into tiny dots that appear to blend into a continuous tone when viewed with a naked eye. Such a pattern of tiny dots is called a halftone.
It has somthing to do with the cell wall/ cell membrane
Answer:
B
Explanation:
Valleys are created by streams of running water
The circulatory system is used to transfer blood