The main factor that controls the rate of breathing is..
A.) concentration of carbon dioxide.
If we think about it.. When we breath in oxygen, right away it enters your lungs and turns into carbon dioxide. Well since your lungs need to process oxygen and bring oxygen into the blood stream. Then as soon as the oxygen comes inside (inhale) the oxygen turns into carbon dioxide and you breath it out (exhale) to get a new oxygen load.
Makes sense? lol
Good Luck! :)
The answer is B. Trichomoniasis
It's caused by a protozoan called trichomonas vaginalis, the most common pathogenic protozoan in industrialized countries.
there are about 160 million pople infected by this worlwide and it transmited sexually. For women the common symptomps ar vaginitis and urehtritis for men.
It can change your health by burning calories or being fit.
Answer:
a. the childs physical age ,hight ,and weight
Explanation:
theres no explanation
