The answer is 5
(pls give brainlyest)
When particles spread out it is called diffusion.
Small intestine is modified due to the presence of micro villi which has ability to increase it's size
B. It is rigid it is important becuase it keeps the plants structure and it allows the plant to stand upright.It is not a fluid and because it is rigid it does not stretch.It cannot be C. because the cell wall is made of cellulose and it is a non living maerial therefore it cannot be alive
