SC.912.L.15.14

Discuss mechanisms of evolutionary change other than natural selection such as genetic drift and gene flow.
General Information
Subject Area: Science
Grade: 912
Body of Knowledge: Life Science
Idea: Level 2: Basic Application of Skills & Concepts
Standard: Diversity and Evolution of Living Organisms -

A. The scientific theory of evolution is the fundamental concept underlying all of biology.

B. The scientific theory of evolution is supported by multiple forms of scientific evidence.

C. Organisms are classified based on their evolutionary history.

D. Natural selection is a primary mechanism leading to evolutionary change.

Date Adopted or Revised: 02/08
Date of Last Rating: 05/08
Status: State Board Approved

Related Courses

This benchmark is part of these courses.
2000310: Biology 1 (Specifically in versions: 2014 - 2015, 2015 - 2022, 2022 and beyond (current))
2000320: Biology 1 Honors (Specifically in versions: 2014 - 2015, 2015 - 2022, 2022 and beyond (current))
2000430: Biology Technology (Specifically in versions: 2014 - 2015, 2015 - 2022, 2022 and beyond (current))
3027020: Biotechnology 2 (Specifically in versions: 2015 and beyond (current))
2000380: Ecology (Specifically in versions: 2014 - 2015, 2015 - 2022, 2022 and beyond (current))
2000440: Genetics Honors (Specifically in versions: 2014 - 2015, 2015 - 2022, 2022 and beyond (current))
2002440: Integrated Science 3 (Specifically in versions: 2014 - 2015, 2015 - 2022, 2022 and beyond (current))
2002450: Integrated Science 3 Honors (Specifically in versions: 2014 - 2015, 2015 - 2022, 2022 and beyond (current))
2000410: Zoology (Specifically in versions: 2014 - 2015, 2015 - 2022, 2022 and beyond (current))
2000800: Florida's Preinternational Baccalaureate Biology 1 (Specifically in versions: 2014 - 2015, 2015 - 2022, 2022 and beyond (current))
7920015: Access Biology 1 (Specifically in versions: 2014 - 2015, 2015 - 2018, 2018 and beyond (current))
2000315: Biology 1 for Credit Recovery (Specifically in versions: 2014 - 2015, 2015 - 2022, 2022 and beyond (current))
2002445: Integrated Science 3 for Credit Recovery (Specifically in versions: 2014 - 2015, 2015 - 2020 (course terminated))

Related Access Points

Alternate version of this benchmark for students with significant cognitive disabilities.
SC.912.L.15.Su.1: Match fossils to related species.
SC.912.L.15.Pa.1: Recognize that plants and animals change as they age.
SC.912.L.15.In.6: Identify that prehistoric plants and animals changed over time (evolved) or became extinct.

Related Resources

Vetted resources educators can use to teach the concepts and skills in this benchmark.

Lesson Plans

The Evolutionary Processes of Population Change:

This is a lesson plan designed to explain three evolutionary processes: natural selection, genetic drift, and gene flow. The lesson plan consists of a brief review about mutations and DNA, a PowerPoint discussion about the three evolutionary processes, and a hands-on activity. The activity is designed to help the students understand how populations change over time due to different traits in individuals in a population, as well as how to identify the different evolutionary processes in a population.

Type: Lesson Plan

Asthma Island :

In this activity, students simulate the founder effect on Tristan Da Cunha island. The island is located in the Southern Atlantic Ocean between South America and the southern part of Africa. It is the most isolated island on earth. The island's population is is 268 people and there are now 80 families that live in the island. Students will explore genetic drift (bottleneck and founder effect) and the importance of genetic variation in a population.

Type: Lesson Plan

Is Natural Selection Random?:

Students will use the real-world example of Hurricane Opal wiping out the beach mouse population from Shell Island in 1995. Students will identify the environmental pressures that led to the differentiation of the Choctawhatchee beach mouse from the mainland population (St. Andrew beach mouse) as natural selection. They will examine the beach mouse population on this island immediately following the hurricane as an example of genetic drift, and the re-population of the island as gene flow. Students will then track changes in the population from the initial re-population following the hurricane to the current population and relate this to natural selection.

Type: Lesson Plan

Selection Dance Party:

In this lesson, students will learn how sexual selection leads to the evolution of species by exploring how courtship rituals lead to the selection of traits in a population.

Type: Lesson Plan

Evolution of a Bead Population:

Students practice modeling the processes of genetic drift, gene flow, the founder effect and natural selection using a population of colored pony beads.

Type: Lesson Plan

Island Biogeography:

Students will study the concept of speciation and predict an island habitat"s biodiversity based on the island's size and distance from the mainland.

Type: Lesson Plan

Lesson Study Resource Kits

Diversity and Evolution: A biology toolkit for grades 9-12:

This toolkit supports the development of an instructional unit on diversity and evolution and aligns with academic standards for science, English language arts, and mathematics for students in grades 9-12. The elements of this toolkit were assembled based upon their suitability for constructing a multi-day instructional unit on hominid evolution that corresponds with the 5E Learning Cycle of engage, explore, explain, elaborate, and evaluate. Your task as a lesson study team is to analyze the materials that are included in this toolkit and evaluate how they can be incorporated in a 5-E instructional unit plan that complies with the academic standards for science, English language arts, and mathematics. As you study these resources it is important to make note of any deficiencies or gaps that will need to be addressed and make modifications in the lesson resources and activities where needed.

Type: Lesson Study Resource Kit

Exploring Diversity and Evolution: A Lesson Study Resource Kit for grades 9-12:

This lesson study resource kit is designed to support lesson study teams in developing a unit of instruction for students in grades 9-12 on the topic of diversity and evolution.

Type: Lesson Study Resource Kit

Original Student Tutorial

Beyond Natural Selection: Mechanisms of Evolution :

Explore mechanisms of evolutionary change other than natural selection such as mutation, gene flow, and genetic drift in this interactive tutorial.

Type: Original Student Tutorial

Perspectives Video: Expert

Methods of Evolution in Animal Populations Big and Small:

Interested in how evolution happens? Drift into this video and go with the flow.

Download the CPALMS Perspectives video student note taking guide.

Type: Perspectives Video: Expert

Problem-Solving Task

Aggresion in Dogs: Evolution of a Species:

Scientists know all dogs descended from the gray wolf, but they don't know exactly how that happened. In this activity, students will engage in a card game simulation to learn how selective pressures can affect an organism's evolution.

Type: Problem-Solving Task

Teaching Idea

Simulating Evolutionary Processes with Poker Chips:

In this lesson, students use colored discs to simulate changes in population allele frequencies that occur due to evolutionary processes. They first show that allele frequencies do not change when only random mating occurs in a population. Then they demonstrate the effects of natural selection, genetic drift, gene flow, and mutation on population allele frequencies. 

Type: Teaching Idea

Text Resources

The Oldest Fish in the World Lived 500 Million Years Ago:

This informational text resource is intended to support reading in the content area. The article describes the discovery of an ancient fish that provides scientists with a "missing link" in the fossil record, helping them understand when and how organisms transitioned from boneless, jawless organisms into the fish that dominate the oceans today. The text details the adaptations these ancient fish had and draws connections to adaptations found in later species.

Type: Text Resource

New Housecat-Size Feline Species Discovered:

This informational text is intended to support reading in the content area. The article discusses how scientists have discovered a species of Oncilla (little tiger cats) in Northeastern Brazil, which are a genetically different species than those in the rest of South America.

Type: Text Resource

Remote Sheep Population Resists Genetic Drift:

This informational text resource is intended to support reading in the content area. This article describes a mouflon population located on a remote island in the Indian Ocean. This population of sheep was transplanted to Haute Island over 50 years ago. Recent studies show that the population has maintained its genetic diversity. This finding challenges scientists' beliefs about the theories of genetic drift and shows the power of natural selection.

Type: Text Resource

Video/Audio/Animations

Mechanisms of Evolution:

This TED Ed video explains the mechanisms of evolutionary change: change in population size, sexual selection, mutation, gene flow, and natural selection.

Type: Video/Audio/Animation

Pocket Mouse Evolution:

This simulation shows the spread of a favorable mutation through a population of pocket mice. Even a small selective advantage can lead to a rapid evolution of the population.

Type: Video/Audio/Animation

Virtual Manipulative

Mechanisms of Evolution:

Evolution is the process by which modern organisms have descended from ancient ancestors. There are five processes that can lead to evolution within a population. These are Genetic drift, Gene flow, Mutation, Natural selection and Sexual selection. This tutorial will help the learners understand and visualize the way by which these processes affect evolution.

Type: Virtual Manipulative

Original Student Tutorials Science - Grades 9-12

Beyond Natural Selection: Mechanisms of Evolution :

Explore mechanisms of evolutionary change other than natural selection such as mutation, gene flow, and genetic drift in this interactive tutorial.

Student Resources

Vetted resources students can use to learn the concepts and skills in this benchmark.

Original Student Tutorial

Beyond Natural Selection: Mechanisms of Evolution :

Explore mechanisms of evolutionary change other than natural selection such as mutation, gene flow, and genetic drift in this interactive tutorial.

Type: Original Student Tutorial

Perspectives Video: Expert

Methods of Evolution in Animal Populations Big and Small:

Interested in how evolution happens? Drift into this video and go with the flow.

Download the CPALMS Perspectives video student note taking guide.

Type: Perspectives Video: Expert

Video/Audio/Animations

Mechanisms of Evolution:

This TED Ed video explains the mechanisms of evolutionary change: change in population size, sexual selection, mutation, gene flow, and natural selection.

Type: Video/Audio/Animation

Pocket Mouse Evolution:

This simulation shows the spread of a favorable mutation through a population of pocket mice. Even a small selective advantage can lead to a rapid evolution of the population.

Type: Video/Audio/Animation

Virtual Manipulative

Mechanisms of Evolution:

Evolution is the process by which modern organisms have descended from ancient ancestors. There are five processes that can lead to evolution within a population. These are Genetic drift, Gene flow, Mutation, Natural selection and Sexual selection. This tutorial will help the learners understand and visualize the way by which these processes affect evolution.

Type: Virtual Manipulative

Parent Resources

Vetted resources caregivers can use to help students learn the concepts and skills in this benchmark.

Perspectives Video: Expert

Methods of Evolution in Animal Populations Big and Small:

Interested in how evolution happens? Drift into this video and go with the flow.

Download the CPALMS Perspectives video student note taking guide.

Type: Perspectives Video: Expert

Virtual Manipulative

Mechanisms of Evolution:

Evolution is the process by which modern organisms have descended from ancient ancestors. There are five processes that can lead to evolution within a population. These are Genetic drift, Gene flow, Mutation, Natural selection and Sexual selection. This tutorial will help the learners understand and visualize the way by which these processes affect evolution.

Type: Virtual Manipulative