Question

using the drop-down menus, identify the structures common to all cells.
label a
label b
label c
label d
done

Explanation:

To identify cell structures common to all cells (prokaryotic and eukaryotic), we recall: all cells have genetic material (DNA, labeled A), a cell membrane (B, for boundary), ribosomes (C, for protein synthesis), and cytoplasm (D, the fluid matrix).

• Label A: Genetic material (e.g., nucleoid/DNA in prokaryotes, nucleus - like in eukaryotes here, so "DNA (or genetic material)")
• Label B: Cell membrane (regulates entry/exit)
• Label C: Ribosomes (make proteins)
• Label D: Cytoplasm (holds organelles/contents)

Answer:

Label A: Genetic Material (DNA)
Label B: Cell Membrane
Label C: Ribosomes
Label D: Cytoplasm

(Note: Exact dropdown options may include terms like "Nucleoid/DNA" for A, "Cell Membrane" for B, "Ribosome" for C, "Cytoplasm" for D, depending on the provided choices.)