White Blood Cells could be a possible answer. Not sure if this is multiple choice or not.
What kind of class is this, I’m ded
I think it A because Cyanobacteria absorb co2 from the atmosphere and then release oxygen To the atmosphere
Quite simple really.... The CNS actually doesn't receive as much nutrients or key components from the blood... The blood actually dumps it into the Cerebrospinal fluid. The Cerebrospinal fluid therefore is directly in contact with the brain and if you want to find an infection you take from a source as close to thing as you can.
