Question

Please Help me D:

Which system contains the heart, blood, and blood vessels?

A. muscular
B. circulatory
C. respiratory
D. digestive

Which system contains the pituitary, adrenal, and thyroid glands?

A. respiratory
B. circulatory
C. endocrine
D. reproductive

Answer 1

The First one is C) because its in my health book and the second one is also c

Step-by-step explanation:

Answer 2

The answer for the first question would be "B". The answer for the second question would be "C".