Answer:
O fight or flight
Explanation:
The duck is afraid of Carol's little brother, even though the duck would almost let him get close
the main difference is that bacteria are free-living cells that can live inside or outside a body, while viruses are a non-living collection of molecules that need a host to survive.
Many bacteria help us: living in our gut digesting and helping absorption of our food, fixing nitrogen and decomposing organic materials in soil. Similarly, not all viruses are bad—we now know there are also beneficial viruses present in our gut, skin and blood that can kill undesirable bacteria and more dangerous viruses.
I believe that it would be that mass and texture affect the amount of friction. Hope this helps!
3600, PLEASE MARK AS BRAINLIEST!!!
