Journal Essay

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Journal: Characteristics of Life Here are six living things: a person, an oak tree, a mushroom, an amoeba, seaweed, and a bacterium. What features do they all have in common? How do they differ? Use the Internet to aid your research. Common features- all exhibit the presence of the seven characteristics of life (discussed earlier) at some stage in an organism’s life. * All living things are made up of one or more cells. * All living things are able to reproduce and make copies of themselves/offspring. * Another common characteristic among living things is the need for energy in order to survive. * Materials for use by an organism are obtained from the environment. Waste products of metabolism must be removed from cells. * Living things have a mechanism by which they can pass traits along to their offspring. * Changes in the environment require adaptations by the organism. * Living things interact with each other in a process known as symbiosis. They also interact with their environment. Differences- * A person is: a multicellular, eukaryotic organism, a heterotrophic (cannot make their own food) animal. * An oak tree is: a multicellular, eukaryotic organism, an autotrophic (can make their own food) plant. Lives on the land. * A mushroom is: a multicellular, eukaryotic organism, a heterotrophic (cannot make their own food) fungi. * An amoeba is: a multicellular, eukaryotic organism, a heterotrophic (cannot make their own food) protist. * Seaweed is: a multicellular, eukaryotic organism, an autotrophic (can make their own food) plant. Lives in aquatic environments. * A bacterium is: a unicellular prokaryotic organism that is autotrophic (can make their own

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