I think option 2. Cos the first and last ones are about Geography and the 3rd one is just a theory
The primary<span> motor </span>cortex<span> (Brodmann area 4) is a brain region that in humans is located in the dorsal portion of the frontal lobe.</span>
Polar molecules i believe
Answer:
Water can diffuse through the lipid bilayer even though it's polar because it's a very small molecule. Water can also pass through the cell membrane by osmosis, because of the high osmotic pressure difference between the inside and the outside the cell.
Stomata are normally opened during the day because photosynthesis happens during the day. The stoma allow oxygen and carbon dioxide to diffuse through them.