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 unicellular organisms are the same species. cells contain small structures. 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.

Explanation:

• Statement 1: Unicellular organisms like Micrasterias radiosa and Amoeba proteus are different species. So, "All unicellular organisms are the same species" is false.
• Statement 2: Cells (whether from Homo sapiens, Micrasterias radiosa, Amoeba proteus, or Allium cepa) contain small structures like organelles (e.g., nuclei in Homo sapiens cells, etc.). So, "Cells contain small structures" is true.
• Statement 3: In a multicellular organism like Homo sapiens, cells have different shapes (e.g., nerve cells vs. epithelial cells). So, "All cells within a multicellular organism have the exact same shape" is false.
• Statement 4: Homo sapiens (human) and Allium cepa (onion) are made of many cells (multicellular), while Micrasterias radiosa and Amoeba proteus are made of one cell (unicellular). So, "Homo sapiens and Allium cepa are multicellular, while Micrasterias radiosa and Amoeba proteus are unicellular" is true.

Answer:

• Second statement: Cells contain small structures.
• Fourth statement: Homo sapiens and Allium cepa are multicellular, while Micrasterias radiosa and Amoeba proteus are unicellular.