A decrease in the functionality of this structure in a cell would directly decrease the ability of the cell to exchange materials with its
environment to maintain homeostasis.
A) Structure 1
B) Structure 3
C) Structure 7
D) Structure 10

answer: the blood-brain barrier is a layer of specialized membranes and cell processes designed to keep undesirable substances from passing from the bloodstream into the precious tissues of the brain. while the blood-brain barrier does keep most bad things out of the central nervous system, it is not impermeable.

explanation:

i'm guessing this is from edg enuity so the answers would be, from top to bottom,

theodor schwann

matthias schleiden

robert hooke

rudolph virchow

anton van leeuwenhoek