In some very sensitive patients, the smell of cheese can cause an allergic reaction so yes
Answer:With this system, blood always flows in only one direction inside the heart. There are also valves at the bottom of the large arteries that carry blood away from the heart: the aorta and the pulmonary artery. These valves keep the blood from flowing backward into the heart once it has been pumped out.
Explanation:
True
If you want more explanation I'm more than happy to and I hope this helps:)
