Answer:
The Respiratory system allows the entry of oxygen into the body and releases Carbon Dioxide. The Oxygen travels across lung tissue into blood vessels and the blood carries the oxygen around the body. Thus the Respiratory and Circulatory systems work together in gas exchange which is vital in Homeostasis.
Answer:
Genes go brrrrrrrr
Explanation:
The answer is C because gene therapy is used to knock out, replace, or remove the mutated genes.
I think it's the simple columnar epithelium.
