The human body consists of systems that include the digestive system, respiratory system, urinary system, nervous system and other...

NERVOUS d d c b a CARDIOVASCULAR b d c a d RESPIRATORY c c a a c DIGESTIVE b c a d b URINARY c c b d b ENDOCRINE a b d a d LYMPHATIC c c...

The main functions of the male and female reproductive systems include the production of gametes, secretion of sex hormones (e.g....