Please help will give brainliest no links please

How do all types of diffusion/passive transport actually ‘work’ without using even the smallest amount of cellular energy?

What gases are carried by the blood

Just a quick question. will give pointswhat is the root word of "blood."it is written in my homework as hemat(o) : blood.so, should i write that the root word as hemat or hemato or hemat(o). i'm really confused.