Answer:
they can form complex organ systems.
Answer:
Piano
Explanation:
Because it has the larger mass
Answer:
Things that affect our mental health include our:
-upbringing and environment
-which shapes our brain development when young and opportunities throughout life
-experiences, like our relationships
-how we are treated
-our financial situation
-work
-where we live, physical health, life events and the changes we go through.
<em>hope it helps :)</em>
<em>please mark it the brainliest!</em>
Bone, which is made of collagen, which is strenghtened by calcium phosphate
