Rch64

02.02.2021 • 

Biology

3. How does a vaccine work? * 2 points
o
It trains your immune system to attack the disease causing agent before it makes you
sick
O It makes you a little sick so the disease worit make you feel sick next time.
Oh locks your cells' so diseases carít get in.
O i fills up your immune system with vitamins and minerals that fight disease.

Ответ:

johnjon1300

01.08.2021

Biology

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Even in the desert, there is water vapor in the air—molecules of water in the gas phase. These molecules have a lot of freedom of movement and can move apart from each other, so water vapor is invisible.

Explanation:

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