Final answer:
All cells on Earth share a common set of three structures: the cell membrane, cytoplasm, and nucleic acids (DNA). These structures are essential for cell survival, function, and replication, present in both prokaryotic and eukaryotic cells.
Step-by-step explanation:
The three things present in all cells on Earth are: a) Cell Membrane, c) Cytoplasm, and e) Nucleic Acid. All living cells, whether they are prokaryotic cells or eukaryotic cells, have these structures in common. The cell membrane or plasma membrane is an outer covering that separates the cell's interior from its surrounding environment. The cytoplasm consists of a jelly-like substance within the cell where cellular components are found. Nucleic acids, such as DNA, hold the genetic information vital for cell function and replication. These are considered the basic units of life and are fundamental for cells to survive, grow, and reproduce.