Basically all a vaccine is would be cells from the virus that is injected into you but the catch is the virus has been altered to prepare your immune system for what is to come if you catch the original virus so the correct answer would be C hope this is helpful for you.
Answer:
A. Provided the major energy source used by mitochondria
Answer:
b.
Their possession of inherited adaptations that maximize fitness.
Answer:many ways
Explanation:
u can catch it like a regualar cold
