1. Immigration
2. Emigration
3. Extinction events
Group of tissues performing a specific task is known as organ and group of organs performing a specific task is organ system.
Answer:
true
Explanation:
Penicillin is a bacteria so it means it causes the production of antibodies which then boost the immune system.
It is like vaccination; small doses of the inactive form of the infection is injected into the body in order for the body to create antibodies resistant to such infection(thereby boosting the immune system).
Hope it helps.
Answer:
D
Explanation:
Because don't have any p53 genes