In a complete story, from ecosystem to molecules, pocket mice show us how random changes in the genome can take many paths to the same adaptation-a colored coat that hides them from predators. Michael Nachman, whose work in the field and in the lab has quantified the selective pressure of predators and identified the genes involved in adaptation. Displaying top 8 worksheets found for - Rock Pocket Mouse. This speed is essential if you’re a desert mouse living in an environment where a volcanic eruption can reverse selective pressure in nearly an instant. Not only is evolution happening right now everywhere around us, but adaptive changes can occur in a population with remarkable speed. The rock pocket mouse is a living example of Darwin’s process of natural selection. The data is summarized in the table below. color variation over time in rock pocket mouse populations web populations key concepts the environment contributes to determining whether a mutation is advantageous deleterious or neutral mutations that. The mouse relies on camouflage to hide and escape from predators. The mouse’s main predators are Owls, Hawks, Snakes, Coyotes, and Foxes. They recorded substrate color and coat-color frequencies for six locations. If your class covers the Hardy-Weinberg equilibrium, you may wish to use the other film lesson, Allele and Phenotype Frequencies in Rock Pocket Mouse. Activity Worksheet: Of Mice and All Other Organisms The Rock Pocket Mouselives in a desert ecosystem: The Valley of Fire in New Mexico, United States. To see the full, 10:25 minute video, please visit /biointeractive/shortfilms/. Nachman and his colleagues collected rock pocket mice across 35 kilometers of Arizona Sonoran Desert, which include both dark, rocky lava patches and light, rocky granite areas. Explain why a rock pocket mouses color influences its overall fitness. a.What specific trait did researchers study in this investigation Fur color, specifically melanism, is the trait they studied. As you watch, record the following information. It is an excerpt from an HHMI video entitled "The Making of the Fittest: Natural Selection and Adaptation". MAKING OF THE FITTEST: ROCK POCKET MOUSE ANSWER SHEET PROCEDURE 1.Watch the short film The Making of the Fittest: Natural Selection and Adaptation. This video is being submitted to the 2012 Labby Multimedia Awards. Color variation over time in rock pocket mouse populations Grade Level(s): 9-12 Source: Howard Hughes Medical Institute Resource type: Classroom activity Time:50 minutes Overview Students watch a short film and complete a worksheet and graphing exercise that reinforces the concepts of variation and natural selection.
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