Question

Last and hardest question I need help with is this:

How and where does the brain evaluate reward value and effort (cost) to modulate behavior? How does previous experience alter perception and behavior? What are the genetic and environmental contributions to brain function?

Just kidding, what is the red and white things in your blood?

Answer 1

Red blood cells (RBC) deliver oxygen from your lungs to your tissues and organs. White blood cells (WBC) fight infection and are part of your immune system. Platelets help blood to clot when you have a cut or wound. Bone marrow, the spongy material inside your bones, makes new blood cells. (i git this from safari bc i aint that smart )

in conclusion theyre blood cells lol

Answer 2

Those red and white things are called red/white blood cells.

Step-by-step explanation:

The solid part of your blood contains red blood cells, white blood cells, and platelets. Red blood cells (RBC) deliver oxygen from your lungs to your tissues and organs. White blood cells (WBC) fight infection and are part of your immune system. Platelets help blood to clot when you have a cut or wound.

I hope this helped! Good luck with your assignments!