Why are groups of small cells better than one large cell at moving material in
and out?

Because smaller cells can fit through smaller spaces while larger cells can't.

Step-by-step explanation:

D. They have a greater surface-to-volume ratio.

Explanation:

Got it right in A P E X. :)

Will you please mark as Brainliest? =D

answer:

it is general formula that is used to write value to its excet position

a11 a12 a13

a21 a22 a23

it is the example of order 2 by 3 matrix in this

a11 means value occur in 1 st row 1st column

a12 means value occurs in 1st row 2nd column

a13 means value occur in 1st row and 3rd column

a21 means value occurs in 2nd row and 1st column

a22 means value occurs in 2nd row and in 2nd column

a23 means value occurs in 2nd row and in 3rd column

step-by-step explanation:

mean or average is 40.6