About This Chapter
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.
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.
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.
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.
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.
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.
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.
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.
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.
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Other chapters within the FTCE Biology Grades 6-12 (002): Practice & Study Guide course
- About the FTCE Biology Grades 6-12 Test
- FTCE Biology: Basic Lab Equipment, Processes & Measurements
- FTCE Biology: Research Methods
- FTCE Biology: Science, Technology & Society
- FTCE Biology: Inorganic Compounds
- FTCE Biology: Organic Compounds
- FTCE Biology: Nucleic Acids
- FTCE Biology: Enzymes
- FTCE Biology: Metabolic Biochemistry
- FTCE Biology: Cell Biology
- FTCE Biology: Plant Cells
- FTCE Biology: Cell Communication
- FTCE Biology: Requirements of Biological Systems
- FTCE Biology: Cell Cycle & Division
- FTCE Biology: DNA Replication
- FTCE Biology: The Transcription & Translation Process
- FTCE Biology: Genetic Principles, Processes & Applications
- FTCE Biology: Genetic Mutations
- FTCE Biology: Prokaryotic Organisms & Viruses
- FTCE Biology: Protists, Fungi & Plant Biology
- FTCE Biology: Plant Reproduction & Growth
- FTCE Biology: Animal Systems, Behavior & Interactions
- FTCE Biology: Overview of the Human Body
- FTCE Biology: Ecological Principles & Processes
- FTCE Biology: Components of Florida's Ecosystems
- FTCE Biology: Origins of Life on Earth & Taxonomy
- FTCE Biology Grades 6-12 Flashcards