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Ch 26: FTCE Biology: Evolutionary Mechanisms

About This Chapter

Join us on a journey through the mechanisms responsible for the biological diversity of the planet Earth. This interesting chapter can help you prepare for questions on evolutionary mechanisms on the FTCE Biology exam.

FTCE Biology: Evolutionary Mechanisms- Chapter Summary

In this chapter, expert biology instructors guide you through the various evolutionary principles related to speciation. You can review the evidence supporting the theory of evolution as well as see how environmental, climatic, and geological events may contribute to genetic variability in the natural world. Use these lessons to help you review for evolutionary mechanisms questions on the FTCE Biology exam.

By the end of the chapter you should be able to:

  • Compare the theories of Larmarck and Darwin
  • Describe the evidence supporting evolutionary theory
  • Define and explain the limitations of a species
  • Explain Hardy-Weinberg Equilibrium and natural selection
  • Differentiate between speciation types
  • Describe and give examples of the influence of plate tectonics and the environment have on the evolution of species
  • Differentiate between genetic varibility, random mutation, and artificial selection

The lessons in this chapter are presented through text and short engaging video segments. To enhance your study, be sure to use the Timeline feature of the video player and the accompanying transcripts to review specific points in the lessons. There will also be a short quiz after each topic that you can use to assess your readiness for the exam. Enjoy your learning and follow your progress on your Dashboard.

8 Lessons in Chapter 26: FTCE Biology: Evolutionary Mechanisms
Test your knowledge with a 30-question chapter practice test
Theories of Evolution: Lamarck vs. Darwin

1. Theories of Evolution: Lamarck vs. Darwin

We'll look at the interplay between population genetics and environment. Are traits individually acquired or do entire populations evolve? The flying hamsters and a few other notable experiments will provide the answers.

Evidence for Evolution: Paleontology, Biogeography, Embryology, Comparative Anatomy & Molecular Biology

2. Evidence for Evolution: Paleontology, Biogeography, Embryology, Comparative Anatomy & Molecular Biology

There is much support for the theory of evolution. This evidence comes from a variety of scientific fields and provides information that helps us trace changes in species over time. In this lesson, we'll look at this evidence and explore how it supports the theory of evolution.

Concept of 'Species': Definitions & Limitations

3. Concept of 'Species': Definitions & Limitations

'Species' is just a word, one that can be defined in many different ways. This lessons defines biological, ecological, morphological, and phylogenetic species concepts.

Hardy-Weinberg Equilibrium: Definition, Equation & Evolutionary Agents

4. Hardy-Weinberg Equilibrium: Definition, Equation & Evolutionary Agents

In this lesson we will define Hardy-Weinberg equilibrium and break down the Hardy-Weinberg equation to figure out if a population of hypothetical beetles is evolving.

Natural Selection & Adaptation Processes

5. Natural Selection & Adaptation Processes

Through the process of adaptation, natural selection shapes the variety of life that exists around us. This lesson will explore some of the ways this process can take place.

Overview of Speciation Types & Barriers

6. Overview of Speciation Types & Barriers

Have you ever wondered how a new species arises? This lesson will examine speciation, or when a new species forms, as well as barriers that prevent separate species from mating.

Genetic Variability, Random Mutation & Artificial Selection

7. Genetic Variability, Random Mutation & Artificial Selection

In this lesson we will discuss the importance of genetic variability and the role of random mutations. We will also compare the processes of natural and artificial selection.

What is Plate Tectonics? - Definition, Theory & Components

8. What is Plate Tectonics? - Definition, Theory & Components

Imagine ice floating in a glass. Would you believe that we are all living on giant pieces of floating rock, just like the ice in that glass? This lesson explains that theory, an idea known as plate tectonics.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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