the answer is C. thinking about a problem constantly
Blood in the pulmonary vein is oxygen rich, while in all of the other veins, it is oxygen poor.
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Answer:
If you wanted to cut down your risk for developing cancer, it would be best if you avoided tobacco products which is option C. Tobbaco products contain a ginormous amount of harmful ingredients which often lead people to develop cancer over time.
Explanation:
Answer:
type 1 diabetes
Explanation: pancreas can't make insulin because the immune system attacks it and destroys the cells that produce insulin. Kids and teens with type 1 diabetes are at risk for other autoimmune problems, but these aren't actually caused by the diabetes.
Answer:
a repetiton im pretty sure
Explanation:
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