Regions of the body which require large surface area for absorption, such as the cells covering the inner surface of the small intestine, often have

layers of cell membranes- micro villi

Explanation:

They are similar to cilia but shorter in  length and diameter.They have average diameter of micrometer with average length of 2 micrometer

These are layers of cells membrane which protrudes or extended  on the epithelial lining of the  small intestine.They are microscopic in  structure,and their major function is to increase the surface area of the small intestine for absorption of digested food substances. Therefore reducing volume while aiding the rapid movement of the digested food into the bloodstreams.

Aggregate of micro villi is called brush border on the surface of the small intestine. Their activity with the villi aids the increase in the surface area which leads to absorption of food substances

there are 35 white marbles

step-by-step explanation:

y- yellow marbles

4y + 5 = 45

subtract 5 from both sides

4y = 40

divide for from both sides

y = 10

plug in 10 to get 40 yellow marbles then subtract by 5 to get 35 marbles

thus there are only 10 yellow marbles

is this a question? wassup