Cara and chuck were looking at pond water through a microscope they saw small square crystals in their slide cara wondered what is was chuck said it could not be any living thing because it was not? a. round. b. moving. c. small enough. d. made of cells.

The answer is D it is not made of cells

The right option is; D. Made of cells.

chuck said it could not be any living thing because it was not made of cells.

Cell is the basic structural and functional unit of all living organisms. All living organisms are made up of many cells that functions together, and they are either unicellular or multicellular organisms. Cells contain several membrane bound organelles that perform different important functions within the cell. Distinct features that allow a cell to carry out its functions include; a cell membrane that keep the chemical reactions of life together, at least one chromosome that contains genetic material, and the cytoplasm (the content of the cell).

lysosome is this part of the cell is surrounded by a very thick outer membrane to protect the rest of the cell from its strong enzymes.