ROCK POCKET MOUSE ANSWER KEY SERIES

Record your counts in the spaces provided at the top of each illustration.

Count the number of light-colored and dark-colored mice present at each location at each moment in time. Each full-page illustration shows the color variation at two different locations, A and B, at a particular moment in time. A complete answer should resemble the following, with partial credit given to students who do not include all the key terms or concepts (key terms are in italics): Rock pocket mice with dark-colored fur were more fit on dark-colored volcanic rock because visual predators could not see them well that is, natural selection favored individuals. What macromolecule determines whether a rock pocket mouse will inherit light-colored fur or dark-colored fur? Insert Answer Due to natural selection, which color variety of mouse-dark or light-would you expect to be most common where there were lave flows? Insert Answer Which mouse variety would you expect to be most common where there were not lava flows? Insert Answer Part 1: Collecting data The illustrations on the following pages represent snapshots of rock pocket mouse populations. Most of the landscape consists of light- colored sand and rock, but patches of dark volcanic rocks that formed from cooling lava flows are found, separated by several kilometers of light-colored substrate. There are also two major colors of substrate, or surface materials that make up the desert floor. There are two common varieties-a light-colored variety and a dark-colored variety. You can find populations of rock pocket mice all over the Sonoran Desert in the southwestern United States. Rock pocket mice, however, have had an enormous impact on science.

ROCK POCKET MOUSE ANSWER KEY SERIES

And at just 15 grams, this tiny mouse weighs about as much as a handful of paper clips. Students will answer a series of questions to explain how a change in amino acid sequence affects the functionality of the MC1R protein, and how that change might directly affect the coat color of the rock pocket mouse populations and the survival of that population. The four illustrations provided by your teacher represent snapshots of rock pocket mouse populations. Introduction A typical rock pocket mouse is about 170 millimeters long from nose to rump, shorter than an average pencil. Moke sure to explain your answers in complete sentences, where appropriate. Rock Pocket Mice Evolution Case Study - Word rences Mailings Review View Rock Pocket Mice: A Case Study of Evolution Please respond in the spaces provided in this document, save, and submit to the Dropbox.

Rock pocket mouse answer key