Answer:
Bones
Explanation:
The integumentary system is the skin. You have erector pilli muscles, blood vessels and nerves all within the skin. But not bone
I’m pretty sure that your answer would be A
INTRODUCTION. The physiological determinants of the length of the interval between two consecutive live births. to the same woman, in the absence of intervening foetal deaths, are. (I) The duration of post-partum infecundity; (2) Fecundability;'
in my own words being born...