Which of the following statements is not true about the immune system ? a. in children, lympathic tissues such as adenoids, tonsils, and lymph nodes enlarge as growth continues and from exposure to microorganism b. there is more lymphoid tissue in adults than in children c. disease, poor nutrition, or poor enviroments can damage the immune system d. in later adulthood, the thymus gland starts to degenerate 

I just took it for my anatomy final and the right answer is B guys

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the aorta is the large artery leaving the heart branches into smaller arteries, which eventually branch into capillaries.the arteries carry oxygen and nutrients away from your heart, to your body's tissues. the capillaries are small, thin blood vessels that connect the arteries and the veins. the statement that arteries carry oxygen-rich blood to capillaries is true. veins on the other hand are blood vessels that take oxygen-poor blood back to the heart.