It may be the city's waste management (garbage disposal), since the lysosomes, in effect, play a role in cleaning the body's cells and tissues. See the related link below.
The nuclear membrane also plays a role in regulating what enters and exits the nucleus, similar to the nucleolus.
the Nucleus
The nucleus controls the cell's functions.
A nucleus is good at its job because it's programmed to be. It contains the cell's DNA and directs the cell's activities.
the job of nuclear membrane is to protect the nucleus.
Burger king
The nuclear membrane also plays a role in regulating what enters and exits the nucleus, similar to the nucleolus.
the Nucleus
nucleus
nucleus
That would be the DNA, which instructs the cell how to do its job and be a functional part of the organism.
The nucleus is the organelle that contains the DNA. Its job is to control the cell's functions.
The nucleus controls the cell's functions.
that is because the necleus has adapted to its job
it surrounds the nucleus.
A nucleus is good at its job because it's programmed to be. It contains the cell's DNA and directs the cell's activities.
The nucleoid region in prokaryotes does the same job as the nucleus in eukaryotes, but I do not think you mean this. Nothing holds the genetic information in eukaryote except the nucleus and the mitochondria and chloroplasts. So these endosymbiotic organelles could be said to be doing the same job as the nucleus.