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. which of the following statements are true about the organisms shown in the micrographs above? select all that apply. homo sapiens and allium cepa are multicellular, while micrasterias radiosa and amoeba proteus are unicellular. all cells within a multicellular organism have the exact same shape. all unicellular organisms are the same species. cells contain small structures.

Explanation:

• Homo sapiens (humans) and Allium cepa (onion) are multicellular organisms, while Micrasterias radiosa and Amoeba proteus are unicellular, which is a correct biological fact.
• In a multicellular organism, cells have different shapes based on their functions (e.g., nerve cells are long - and thin, red blood cells are biconcave), so the statement about all cells having the same shape is false.
• Unicellular organisms belong to many different species, such as bacteria, protists like Amoeba and Micrasterias, so the statement about all unicellular organisms being the same species is false.
• Cells contain small structures called organelles (e.g., nucleus, mitochondria) which is a correct biological concept.

Answer:

Homo sapiens and Allium cepa are multicellular, while Micrasterias radiosa and Amoeba proteus are unicellular.
Cells contain small structures.