When your body gets overheated. This is a negative feedback loop. The arteries/veins will dilate letting more blood pass through. Your face tends to get red because there is more blood flow towards the surface in an effort to cool off. This is also why you sweat.
Is it multiple choice or do you just figure out
I'm not 100% sure, but I'd say the availability of vaccines and medicine.
They are better because they are for comparative use for instance hair color to finger nails they both grow but onto separate parts of the body.
Hope this helps [:
All parts in the flowchart contribute to the breakdown of glucose and cell respiration. Without every part in the flowchart, we wouldn't be able to be alive right now. Each part in the flowchart work together. Hope this helps!
