Washing hands and covering coughs
Answer:
Nomadic Bedouin tribes dominated the Arabian Peninsula before the rise of Islam. Family groups called clans formed larger tribal units, which reinforced family cooperation in the difficult living conditions on the Arabian peninsula and protected its members against other tribes.
Explanation:
I believe the correct answer would be "different systems".
Hope it helps!
Answer:
true
Explanation:
hypertension is high blood pressure
atherosclerosis is hardening on the blood vessel(s)
