Question

odd one out and give reason.
polio,WBC,tears,mucus​

Answer 1

Answer:

tears is the answer

Explanation:

tears

Answer 2

The odd one among is Polio
Explanation:
1. Because polio is the disease while
all other are barriers that prevent the
microbes entering in the body.
2. Polio is caused by polio virus .
3. WBCs kills the microbes that enter
the body.
4. Tears and mucus also acts as
physiological barrier that prevents
the microbes enter in the body.