Answer: hfdbsfkdsbhfksdjfidfsf
Explanation: dfndhbsijfbidsfdsfbd
Answer:
https://www.pinterest.com/pin/451134087671358046
Explanation:
It's the labelled diagram
Answer:
A
Explanation:
genes normally are the cause
Because your immune system becomes very weak so it will be most likely for a person to contract something