Question

all organisms are made up of cells. some organisms are unicellular, or made up of just one cell. other organisms are multicellular, or made up of many cells. these micrographs, or magnified pictures taken with a microscope, show cells from organisms of four different species. cells of homo sapiens micrasterias radiosa, made up of one cell amoeba proteus, made up of one cell cells of allium cepa which of the following statements are true about the organisms shown in the micrographs above? select all that apply. all cells within a multicellular organism have the exact same shape. homo sapiens and allium cepa are multicellular, while micrasterias radiosa and amoeba proteus are unicellular. cells contain small structures. all unicellular organisms are the same species.

Explanation:

• The first statement is false. In multicellular organisms like Homo sapiens, cells have different shapes (e.g., nerve cells are long and thin, while some skin cells are more rounded).
• The second statement is true. Homo sapiens (humans) and Allium cepa (onion) are clearly multicellular (many - celled) as shown in their micrographs. Micrasterias radiosa and Amoeba proteus are described as made up of one cell (unicellular).
• The third statement is true. Cells contain organelles (small structures) like nuclei (visible in Homo sapiens cells as purple dots), mitochondria, etc.
• The fourth statement is false. Micrasterias radiosa and Amoeba proteus are both unicellular but are different species.

Answer:

• The second statement: "Homo sapiens and Allium cepa are multicellular, while Micrasterias radiosa and Amoeba proteus are unicellular."
• The third statement: "Cells contain small structures."