Being nocturnal is an adaptation that desert animals survive because

It is easier to function at night in the desert since the temperature drops. This way, animals can eat at night which wastes less energy on body temp regulation. They sleep during the day when the temperature is high and hard for the body to handle without wasting too much energy.

I’m not exactly sure what your trying to ask, but if it’s how an organelle is similar to a body system or a part a nucleus is like a in function. but i don’t fully understand what you’re trying to ask