Answer:
C. photosphere, convective zone, radiative zone, and core
Answer:
The organ system
Explanation:
An organ is composed of tissue and performs a specific set of functions for the body. And that’s called the organ system
Answer – 3. A weakened form of a virus
When getting a vaccination, the substance which is injected into the body is a weakened form of a virus. This weakened from of the virus has the ability to arouse the body’s defense mechanism without causing an infection.
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