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identification and control of varibles on woodlice and their environment
Weegy: Despite their name, sowbugs (or woodlice) are not really bugs. They are land-living crustaceans. There are two species in the U.S., Porcellio laevis (Koch) and Porcellio scaber (Latrelle). Sowbugs are flat, oval creatures. They are about ?” long. [ Their body has several segments. They have seven pair of legs and two pair of antennae. Another crustacean, the pillbug, resembles the sowbug. . Sowbugs cannot roll up when they are disturbed like pillbugs do. Sowbugs have two appendages that look like tails. Pillbugs do not have the appendages.pill Sowbugs are not able to retain water in their bodies, so they spend most of their time in damp places. Outdoors they hide under logs, rocks, flowerpots, and trashcans. Sowbugs eat organic debris and decaying plants, so it is common to find them under mulch in flowerbeds. To conserve moisture, they are usually active at night. Sowbugs usually come into homes through ground-level doors and windows. Sliding glass doors seem to be a favorite entrance for them. Homeowners often find sowbugs in basements and other places that have a damp, humid environment. Sowbugs wander to all parts of the home. They also invade garages and storage buildings. Since many areas in a home are too dry for sowbugs, they usually die after they come indoors. The biggest part of preventing sowbugs is eliminating their hiding places. If there are no damp harborages, the sowbugs will leave or die. There are several things that homeowners can do ] (More)
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Asked 7/28/2012 7:15:58 AM
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state the independent and dependent variables as well as the controlled variables on the woodlouse environment?
Weegy: Focused Research: The focus of this research is the behaviour of the Woodlouse. The question to be answered is what effect does humidity have on the behaviour of the Woodlouse. Specifically where do the woodlice go when given a choice [ of humid or dry conditions. At this point you could include some background biology about the woodlouse as a terrestrial crustacean and how that may lead to a prediction about your experiment. E.g. Woodlice tend to choose moist humid conditions as they are terrestrial crustaceans without a water proof exoskeleton. You may formulate a hypothesis to be tested: 'Woodlice will choose humid condition in preference to dry conditions.' Variables: The independent variable is the choice of dry or humid environment The dependent variable will be the number of woodlice found in either dry or humid chambers . Control variables Temperature Time in chamber Light Size of chambers Establishing conditions in the chambers Variation in the crustaceans (phenotypic/ genetic) ] (More)
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Asked 7/28/2012 7:21:13 AM
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