Question

a scientist found two cells. using a microscope, the scientist observed and documented key structures within each cell to learn more. based on the observations from the scientist, what can be inferred about these cells? nucleus present? cell a: no cell b: yes membrane - bound organelles? cell a: no cell b: yes example: bacteria human cell cell a is a prokaryotic cell and cell b is a eukaryotic cell. cell a is a eukaryotic cell and cell b is a prokaryotic cell. both cell a and b are eukaryotic cells. both cell a and b are prokaryotic cells.

Explanation:

Step1: Recall cell - type characteristics

Prokaryotic cells lack a nucleus and membrane - bound organelles. Eukaryotic cells have a nucleus and membrane - bound organelles.

Step2: Analyze Cell A

Cell A has no nucleus and no membrane - bound organelles, which are characteristics of prokaryotic cells. Bacteria are prokaryotes.

Step3: Analyze Cell B

Cell B has a nucleus and membrane - bound organelles, which are characteristics of eukaryotic cells. Human cells are eukaryotes.

Answer:

Cell A is a prokaryotic cell and cell B is a eukaryotic cell.