I would say A Sphere of cells surrounding a hallow center.
Answer:
call 911 immediately
Explanation:
911 is an emergency hotline be it police, firefighter or ambulance for compounding or impending danger.
<span>Does stress-have an effect on every hand of the body
-true
-Immune system
-Sexuality and reproductive system
-muscular system
-Digestive system
-respiratory and cardiovascular systems
-central nervous and <span>endocrine systems....</span></span>
