Blood cells are produced in which system?
a. circulatory system
b. immune system
...
Biology, 21.09.2019 01:30 amortegaa805
Blood cells are produced in which system?
a. circulatory system
b. immune system
c. skeletal system
d. endocrine system
user:
heart disease includes all of the following risk factors except
a. high blood pressure
b. high cholesterol levels
c. cigarette smoking
d. regular exercise
Answers: 1
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