Answer:
When the diaphragm contracts (it's a large flat muscle), it pulls the lungs down this causing expansion which eventually lead to inhalation of air. If it's injured, then that will be affected.
Yes this is correct well done
Answer:
The answer is most likely carbohydrates: building materal abd glucose storage.
Proteins: cell membrane component and signaling moelcule
Nucleic acid: carry genetic material
Lipids: hydrophobic moleculea
Answer:
there are 12 more teeth in adult than in baby:)
