Which of these is not a part of the immune system? a. bone marrow b. spleen c. heart d. thymus

The answer is= c.) The heart

Explanation= the thymus, spleen, and bone marrow are all apart of the immune system

(Brainliest would be appreciated)

C. The heart

Explanation:

I just took the unit in edge!! ;)

the answer is tom watson. tom watson created this epitaph because he wanted to increase the sympathy felt by people towards the murder of mary phagan.

for many centuries there were important factors which the economies of the muslim empires developed increasingly. they applied economic procedures in production, investment, finance, taxation and property. they used to tax certain goods (for example: harvest), they charged interest on money lent, they signed contracts with merchants; they relied on a common currency, and they used checks as well as promissory notes. with the money collected by means of taxation, the government provided the needy with an income. in addition, trading networks covered huge distances, so far regions started to have contact and exchange goods. this trade network covered areas of asia, africa and europe.