Which feature is found in prokaryotic cells but not in eukaryotic cells?
a. cytoplasm
b. nucleoid
c. plasma membrane
d. nucleus

The correct answer is B - nucleoid.

The nucleoid is a region in a prokaryotic cell that houses the main DNA material of the cell.

In contrast to eukaryotic cells with a nucleus, prokaryote have a nucleoid where the genetic material can be found. The nucleoid is different from the nucleus in eukaryotes in that the genetic material is not enclosed in a membrane to separate it from the cytoplasm.

The nucleoid usually contains  only a single chromosome which has the cell DNA.

carbohydrates: (starches and sugars) composed of carbon, hydrogen, and oxygen.

lipids: (fats, oils, and waxes) are made of carbon and hydrogen atoms.

nucleic acids: contain hydrogen, oxygen, nitrogen, carbon, and phosphorus. they are polymers of nucleotides. a nucleotide has three parts, a 5-carbon sugar, a phosphate     (-po⬇️4) group, and a nitrogenous base.

proteins: made up of nitrogen, carbon, hydrogen, and oxygen. they are polymers of amino acids.

b. lithosphere, asthenosphere, mesosphere   is the answer most likely