Biology
Biology, 16.04.2020 02:02, KaleahV

DQ#6-Regulation:Responses1.In order to respond to a stimulus in the environment what must an organism do?An organism must receive the signal from the environment, then translate it into the response.2.Explain the role of phytochromes in determining plant responses to the environment. What is the stimulus that phytochromes respond to? How is the structure of a phytochrome related to its function?Phytochromes respond to light. They are able to determine responses of photosynthesis rates by how much light they detect.3.Explain how jet lag results from disruption of normal feedback loops at work in determining the circadian rhythms of humans. When the 24 hour circadian rhythm is changed by not allowing it to continue on the track of 24 hours, then the feedback loop is disrupted.4.Explain the function of taxis in motile organismsTaxis determines the motion or orientation of a cell. Motile organisms are normally unicellular.

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