The specialized cells in a unicellar organism perform specialized jobs

Yes.

Explanation: I believe they are called specialized cells because they perform specialized jobs. Specialized cells create tissue, and tissue makes up our body. There are many different types of specialized cells such as Blood cells, reproductive cells, and nerve cells.

ich statement best shows a problem in travels with charley?

one sharp difficulty presented itself. in the intervening twenty-five years my name had become reasonably well known.

this being so, my trip demanded that i leave my name and my identity at home.

i had to go alone and i had to be self-contained, a kind of casual turtle carrying his house on his back.

with all this in mind i wrote to the head office of a great corporation which manufactures trucks.