Answer:
organ
Explanation:
The level of organization that the heart would be classified as is organ. The heart is an organ that is made of cardiac tissue, and cardiac tissue
A banana - no cooking required
It is believed that your brain is still active for 7 minutes after heart failure/death :)
Answer:
Vaccines create immunity without causing illness or resulting complications. Herd immunity makes it possible to protect the population from a disease, including those who can't be vaccinated, such as newborns or those who have compromised immune systems.
Explanation:
