Relative to prokaryotic cells, eukaryotic cells are usually smaller and simpler larger and equally complex smaller and more complex larger and more complex

Large and more complex.

Explanation:

Prokaryotes are the organism that contains the eubacteria and archaea. Prokaryotes lacks the membrane bound organelles whereas membrane bound organelles are present in eukaryotes.

Prokaryotes are simple ans smaller than eukaryotes. Eukaryotes are larger and more complex as prokaryotes are made of single type of cell whereas eukaryotes are unicellular as well as multi-cellular. Eukaryotes are more complex than the prokaryotes.

Thus, the correct answer is option (4).

Bacterial growth in human body is different from bacterial growth on the agar in a petri dish.

Explanation:

We know that in the human body there is the immune system which will interrupt the bacterial growth as they will be recognized as a foreign body and will be destroyed by employing immunological pathways.

Whereas on the agar medium balanced nutrient, pH, salts, amino acids and optimum temperature is provided for the bacterial growth. The desired conditions would be favorable for the  growth of bacteria.