I’d say about 25 Million people. Hope this helps =)
Cancer is caused by accumulated damage to genes. The substance that causes cancer is called carcinogens.
1. Wash your hands constantly - prevents spread of germs.
2. Clean the table - limits germs on tables.
Answer:
retrovirus
Explanation:
a retrovirus inserts RNA to produce the viruses DNA in the hosts cells
this is why mothers can pass HIV and other retroviruses through pregnancy or breastfeeding
Answer:
a.
carries blood away from heart
Explanation:
Arteries carry blood away from the heart. Pulmonary arteries transport blood that has a low oxygen content from the right ventricle to the lungs. Systemic arteries transport oxygenated blood from the left ventricle to the body tissues