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Homeostasis What is Homeostasis? My Experiment: Professional Scientist Definition: I placed two plants in two different temperatures. Plant A was placed in 21 degrees celsius. While plant B placed in 2 degree celsius. A metabolic equilibrium actively maintained by several complex biological mechanisms that operate via the autonomic nervous system to offset changes Every 12 hours I would check on them, and give each one tablespoon of water. On stopped on the fourth day of experiment. My Definition: My hypothesis was that plant B was going to die from the colder temperature. Natural balancing that occurs in organisms that have biological mechanisms that work to response to changes in their enviroment My results were as predicted. Shortly after taking the plant out. The plant was pronounced dead. Homeostasis in unicellular organisms: Unicellular grow, respond to the enviroment. Then, unicellular transform energy, and reproduce. They always to find sources of energy, to keep concentrations of waters and minerals within certain levels, and also so that response to changes happen more quickly. In multicellular organisms: Basically the same concept, but the cells communicate with one another to achieve homeostasis. In multicellular organisms, the cells become specialized in certain tasks. This make multicelllular organisms interdependent. This means that chemical signals are key in Homeostasis success in multicellular organisms. How my experiment relates to homeostasis? I believe the failure of my plant to live, was because the plant did not have any of the means to react to the cold. A human has nerve feelings that send the message of cold to the brain. The brain then send a message to put a sweater, or go away from the cold. Since the plant had none of these, it died. Color 29th @ 5:30 PM A: Green B: Green Height Is it still alive? 15.24 cm 16.51 cm Yes Yes 30th @ 5:30 AM A: Same B: Same Same Same Same Unsure (a leaf broke off) @ 5:30 PM A: Same B: Same Same Same Same Unsure (still frozen) 1st @ 5:30 AM A: Same Same B: Green (with slight discoloring 13.97 cm on edge of leaves) @ 5:30 PM A: Same B: Green (with slight tinge of brown) 2nd @ 5:30 AM A: Same B: Same Same Same Same Same Same Close to death Same Same Same Same