Dylan is using a microscope to look at the cells in onion skin. why does he need a microscope to look at the cells? a. the microscope separates the individual cells. b. cells are too far away to see with the naked eye. c. the microscope collects the cells together. d. cells are too small to see with the naked eye.

it would be the percentage of food eaten by the flock

i remember doing this lab

i'm thinking (a) to keep sand in place; ////////////

explanation: a sand fence or sandbreak, like a snow fence, is used to force windblown, drifting sand to accumulate in a desired place. sand fences are employed to control erosion, sand dune stabilization, keep sand off roadways, and to recruit new material in desert areas.