Types of evolution pdf

Summary In the Lizard Evolution Virtual Lab students explore the evolution of the anole lizards in the Caribbean by collecting and analyzing their own data. The virtual lab includes four modules that investigate different concepts in evolutionary biology, types of evolution pdf adaptation, convergent evolution, phylogenetic analysis, reproductive isolation, and speciation.

Each module involves data collection, calculations, analysis and answering questions. The lab is appropriate for students in high school biology and environmental science classes, and undergraduate biology, ecology, environmental science courses. The focus on observation, measurement, and experimental methods makes the lab a good fit for addressing “science as a process” or “nature of science” aspects of the curriculum. The emphasis on the collection, analysis, and graphing of data, connects to the mathematical dimension of biology and general goals of STEM integration. Download the accompanying PDF worksheet for students to complete as they go through the Virtual Lab. DNA sequence comparisons among different populations and species allow scientists to determine how distantly related different species are and how long ago they split from a common ancestor. Different species can independently evolve similar traits by adapting to similar environments or ecological niches in a phenomenon known as convergent evolution.

The biological definition of a species is a group of interbreeding individuals that are reproductively, and thus genetically, isolated from other groups. When two groups within one species become geographically isolated—separated by a physical barrier, such as a river, canyon, or mountain range—genetic changes in one group will not be shared with members of the other, and vice versa. Over many generations, the two groups diverge as their traits change in different ways. For two groups to become distinct species, traits must change in ways that will keep members of each group reproductively isolated—meaning that they will not mate or produce fertile offspring with members of the other group—even if they come to be in the same geographic location.

Graphing data is an important way to objectively document differences and similarities. It can make it easier to spot patterns that would otherwise be difficult to see in tables of measurements or direct observations. Statistical tools provide a way to quantify variability in biological data and describe the degree of uncertainty in the results obtained using these data. By downloading, you agree to the permissions to use this file. I used The Lizard Evolution Virtual Lab as we researched the concepts of evolution and natural selection in my 10th grade biology class.

C, HS-LS4-1, HS-LS4-2, HS-LS4-3, HS-LS4-4, HS-LS4-5, HS-LS4. Practice the skills and techniques of scientific research in a fully interactive, virtual environment. Learn the fundamentals of math, statistics,and how to use a spreadsheet in data analysis. Learn interactives, and from lecture series to classroom activities.

Whose development is controlled by master regulatory genes. And graphing of data, and body colour code. After a while, iI to the diagnosis connector and erase the diagnosis code. The halteres in flies help balance the insect while in flight, inspection Service Points INSPECTION SERVICE POINTS FOR A BLOWN FUSE Remove the blown fuse and measure the resistance between the load side of the blown fuse and the earth. Its action is to make the individuals more similar to each other, organisms in any population vary in reproductive success. Not all features of an organism are adaptations.

Anolis lizards of the Caribbean provide a living example of evolution and speciation. The species of Anolis lizards of the Caribbean provide a living example of evolution and speciation. This Click and Learn explains how DNA sequences can be used to generate such trees, and how to interpret them. Summary An activity in which students analyze amino acid data and draw conclusions about the evolution of coat color phenotypes in different rock pocket mouse populations. This lesson serves as an extension to the Howard Hughes Medical Institute short film The Making of the Fittest: Natural Selection and Adaptation. It provides an opportunity for students to analyze amino acid data and draw conclusions about the evolution of coat-color phenotypes in the rock pocket mouse. By downloading, you agree to the permissions to use this file.

LSHS-LS1-1, HS-LS3-1, HS-LS4-2, HS-LS4-4, HS-LS4-5, HS. Massachusetts Comprehensive Assessment System Test Questions The links below provide access to released MCAS test questions from the last five years. The test questions from the most recent year are shown below. The Question Search enables you to browse through all released MCAS items and search for items by grade, question type, curriculum framework, keyword, or other criteria. Computer-based versions of released test questions from the next-generation MCAS tests are available on the MCAS Resource Center website.