Question

write about blood capillaries

Answer 1

blood capillaries are the microscopic vessels made of single layer of cells they allow diffusion of various substances the leucocytes can sqeege out of the capillary wall they establish continuity between artery and veins

Answer 2

blood capillaries are the microscopic vessels made up of single layer of cells they allow diffusion of various substance the leucocytes can squeeze out of the capillary wall they establishe continuity between artery and vein.

$\: \: \:$

i hope it's help you !!