A muscle can only “act” when it receives signals from the ________.
Question 22 options:
circulatory system
nervous system
endocrine system
digestive system
none of the above are correct
1 answer
nervous system
Question 22 options:
circulatory system
nervous system
endocrine system
digestive system
none of the above are correct
1 answer
69 answers
61 answers
2 answers
4 answers