During exercise which body response is first in the feedback loop? A)increase in breathing rate b)muscle contraction c)increase in blood co2 d) decrease in blood co2

Adoctor is trying to diagnose a woman with the following symptoms: issues with the heart and lungs, a skin rash, and issues with the joints. what autoimmune disorder will the woman most likely be diagnosed with? a.arthritis b.lupus c.grave’s disease d.allergies