The mitral, tricuspid, and aortic
The media is what affecting teens
Have a good day
according to hairlossstressactions.com
"Yes, stress and hair loss can be related. Three types of hair loss that can be associated with high stress levels are: Telogen effluvium. In telogen effluvium (TEL-o-jun uh-FLOO-vee-um), significant stress pushes large numbers of hair follicles into a resting phase."
If some living things do not reproduce this could be considered a defect or a genetic mutation in those people. If we take humans for example, if most humans reproduce and some don't because they cannot (if a guy cannot produce sperm) this doesn't mean that he isn't alive, it just means he was born with a genetic mutation which doesn't allow him to produce sperm needed for reproducing.
Encoding , decoding, feedback and medium of transmission
mark branliest if i helped out!:))