Diseases or other disorders can be passed down through your family so you need to know your families history to know if you are at an increased risk.
Answer:
OD
Explanation:
OD is the answer because her friend's supported her through the journey, which is her social environment so I hoped I helped:
Esophagus is the correct answer.
Excitatory neurotransmitter? This question is too vague.
Answer:
Get better at math yourself kid
