Name__________________________________________Class_____Date___________________________ MYSTERY ORGANISMS Directions: Using only your own Domains and Kingdoms booklet, figure out which classification groups the following organisms would belong to. Use the charts to show the characteristics the organisms have (circle) and then write the names of the classification groups they belong to on the lines. 1. A student was walking through the woods and discovered an unknown organism. The organism was large and brown and growing on a decaying tree stump on the forest floor. When the student looked at the cells of the organism through a microscope, he saw cell walls around the outside of the cells and large nuclei inside each cell. He did not see any chloroplasts, which are the parts of cells used in making food. number of cells: type of cells: ability to make food: other info: unicellular prokaryote autotroph multicellular eukaryote heterotroph DOMAIN: ____________________ KINGDOM: ____________________ 2. A scientist was examining a water sample. The water looked clear, but upon further investigation using a very powerful microscope, she observed tiny unicellular organisms. The organisms did not have nuclei in their cells. A chemical analysis showed that there was a high level of acid in the water, which is common in hot springs. number of cells: type of cells: ability to make food: other info: unicellular prokaryote autotroph multicellular eukaryote heterotroph DOMAIN: ____________________ 3. A 7A student was looking through a microscope in science class at a pond water sample. She noticed several small organisms swimming around and zoomed in on one for a closer look. Even though it was microscopic, the organism had many cells that made up its body. She could see through the tiny creature and observed its digestive and circulatory systems working. It was swimming around very fast eating other organisms nearby. number of cells: type of cells: ability to make food: other info: unicellular prokaryote autotroph multicellular eukaryote heterotroph DOMAIN: ____________________ KINGDOM: ____________________ 4. Another 7A student was also looking at a pond water sample. He saw the organisms that the 1 st student was looking at, but he was more interested in what those organisms were eating. He saw even tinier creatures that appeared to only be made up of one cell. He could clearly see the nucleus of their cells along with green pigment that Mrs. Ventresca told him was used for capturing sunlight to make food. number of cells: type of cells: ability to make food: other info: unicellular prokaryote autotroph multicellular eukaryote heterotroph DOMAIN: ____________________ KINGDOM: ____________________ 5. A scientist was studying a sample in a lab. The sample was sent from a doctor’s office to be tested to see if the patient had strep throat. The scientist observed tiny, spherical, one-celled organisms in clusters. No nuclei could be seen at all. number of cells: type of cells: ability to make food: other info: unicellular prokaryote autotroph multicellular eukaryote heterotroph DOMAIN: ____________________ 6. A student noticed something growing out of a crack in the sidewalk on his way home. He had never seen this type of organism before and stopped for a closer look. It was three inches tall and mostly green. He remembered learning about the pigment chlorophyll in science and how it was able to capture the energy of sunlight to enable the organism to make its own food. number of cells: type of cells: ability to make food: other info: unicellular prokaryote autotroph multicellular eukaryote heterotroph DOMAIN: ____________________ KINGDOM: ____________________ 7. Found in human intestines: number of cells: type of cells: ability to make food: other info: unicellular prokaryote autotroph DOMAIN: ____________________ multicellular eukaryote heterotroph 8. Found growing on leaves and using them for nutrients: number of cells: type of cells: ability to make food: other info: unicellular prokaryote autotroph multicellular eukaryote heterotroph DOMAIN: ____________________ KINGDOM: ____________________ 9. Found in a lake, swimming around and eating other organisms: number of cells: type of cells: ability to make food: other info: unicellular prokaryote autotroph multicellular eukaryote heterotroph DOMAIN: ____________________ KINGDOM: ____________________ 10. Notice the chloroplasts in this one-celled organism, which capture sunlight for making food: number of cells: type of cells: ability to make food: other info: unicellular prokaryote autotroph multicellular eukaryote heterotroph DOMAIN: ____________________ KINGDOM: ____________________ 11. Microscopic image of a small portion of an organism: number of cells: type of cells: ability to make food: other info: Close up, its cells all look like this: unicellular prokaryote autotroph multicellular eukaryote heterotroph DOMAIN: ____________________ KINGDOM: ____________________ 12. Found in stomach contents of cows: Close up of interior (picture shows one whole organism): number of cells: type of cells: ability to make food: other info: unicellular prokaryote autotroph DOMAIN: ____________________ multicellular eukaryote heterotroph