I’m good with this type of question, but i just didn’t understand this one sorry
Social relationships can improve or harm health...Improve is first : you can get to learn new things that can help you in life that would make your social relationship better like how you speak to someone. Now here is harm health : first you can get stress out from things that's is going on between you and your peer
F) All of them! they all include some form of jump training :) hope it helps
Mouth: oesophagus: stomach: small intestine: large intestine