sorry for my bad handwriting lol-
Https://quizlet.com/12149291/chapter-12-the-cardiovascular-system-3-flash-cards/
This website could help you a ton! ^
<h3>The blood in the pulmonary artery is going to the heart to collect oxygen, and therefore has a low content of oxygen. So, the blood in the pulmonary artery is a violet colour because it has low oxygen. The blood in the pulmonary vein is oxygen rich, and so it gives a scarlet</h3>

Answer:
Loss of size in one of the testicles
Explanation:
Growth of one of the testicles is indicative of a tumor, no cancer would decrease its size.
do you have the signs yu could list? we need them in order to determine the answer