The AV valves close first, then the semilunars open and close, then the AV valves open
<span>Teens under the age of 16 are at great risk of catching an STI ot STD because of their physical immaturity and vulnerability. </span>
I don't think it's supposed to keep it numb but if I was to guest at least a few minutes I don't think it goes past 3
Answer:
<em>Stretches</em>
Explanation:
Stretching while enabling flexibility allows your muscles to adapt and condition themselves to become more flexible over time.
Answer:Sex is the biological difference between male and female example genitalia and genetic differences. While gender refers to gender role of a male or female in the society or gender identity or individual's concept of themselves.
Explanation:
