Answer:
More Carbon dioxide is removed from the blood and exhaled in the breath
Explanation:
During exercise there is an increase in physical activity and muscle cells respire more than they do when the body is at rest. The heart rate increases during exercise. The rate and depth of breathing increases - this makes sure that more oxygen is absorbed into the blood, and more carbon dioxide is removed from it. So, when you exercise and your muscles work harder, your body uses more oxygen and produces more carbon dioxide.
Answer:
ok
Explanation:
Hi I think the answer is bit C but I am not sure
I think the answer is d because the bodys first line of defense is both physical and chemical barriers ect. skin, tears, mucus, cilia, stomach acid and urine flow
Answer:
im not sure, but i think its single-stranded
Explanation:
I think A sorry of I’m wrong but I researched the other options.
