poltheroes.blogg.se - Rocket pocket mouse answer key

Traits that confer an advantage may persist in the population and are called adaptations.

Over time, the proportion of individuals with advantageous traits may increase (and the proportion with disadvantageous traits may decrease) due to their chances of surviving and reproducing.

Inherited characteristics affect the likelihood of an organism's survival and reproduction.

New heritable traits can result from mutations.

Evolution results from genetic drift acting upon genetic variation within a population.

Evolution results from natural selection acting upon genetic variation within a population.

Evolution occurs through multiple mechanisms.

Not all similar traits are homologous some are the result of convergent evolution.

There is a fit between organisms and their environments, though not always a perfect fit.

An organism's features reflect its evolutionary history.

Information on controversies in the public arena relating to evolution.

Alignment with the Next Generation Science Standards.

The big issues – Pacing, diversity, complexity, and trends.

Macroevolution – Evolution above the species level.

Microevolution – Evolution within a population.

Mechanisms: the processes of evolution – Selection, mutation, migration, and more.

The history of life: looking at the patterns – Change over time and shared ancestors.

An introduction to evolution: what is evolution and how does it work?.

Record your counts in the spaces provided at the top of each illustration. A typical rock pocket mouse is 172 millimeters long from its nose to the end of its tail, which is shorter than an average pencil.

Count the number of light-colored and dark-colored mice present at each location at each moment in time. P ART B: ALLELE AND PHENOTYPE FREQUENCIES IN ROCK POCKET MOUSE POPULATIONS INTRODUCTION The tiny rock pocket mouse weighs just 15 grams, about as much as a handful of paper clips. Each full-page illustration shows the color variation at two different locations, A and B, at a particular moment in time. 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. Each illustration shows the color variation at two different locations, A and B, at a particular moment in time.

There are two common varieties-a light-colored variety and a dark-colored variety. The four illustrations provided by your teacher represent snapshots of rock pocket mouse populations. 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. And at just 15 grams, this tiny mouse weighs about as much as a handful of paper clips. 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.