Answer:
B. a decrease in the number of pathogens in the body
Explanation:
White blood cell includes immune cell like monocytes, macrophages, neutrophils, basophils, eosinophils, etc. These cells are responsible for fighting with the pathogens or foreign molecules and eliminate them from the body.
So when any pathogens get enter in the body these cell kills those pathogen and protect us from them. Therefore the decrease in the number of pathogens in the body is a direct indication that the white blood cells in the body are working. So the right answer is B.
Hello There! ^_^
Your question: What gas found in cigarette smoke and automobile exhaust, blocks the transport of oxygen by hemoglobin in the blood..?
Your answer: Carbon Monoxide is the gas that is found in cigarette smoke and automobile exhaust, blocks the transport of oxygen by hemoglobin in the blood.
Hope this helps! :D
Answer: Carbon Dioxide, Water, Chemical, Radiant, Glucose, and Oxygen
Explanation: This is in order for the line they should be in
A and B. Because if heart cells were located in your brain, your brain would not perform the right function. And B because if cells perform different functions and are in the wrong spot im your body it wouldnt work.