About This Chapter
MTEL Biology: Evolution - Chapter Summary
Brush up on issues regarding fossil evidence for mass extinction, biological diversity and speciation with a fun video and by focusing on the bold key terms in the transcript. Other topics in this chapter that you may see on the MTEL Biology exam include:
- Principles of Darwinian evolution
- The Hardy Weinberg equilibrium equation
- Prezygotic and postzygotic barriers
- Punctuated equilibrium and molecular clock hypothesis
- Different types of scientific evidence supporting evolution
- Properties of alleles
You can get even more review of these key evolution discussion points by completing a practice quiz with each of the chapter's lessons. The quizzes feature multiple-choice questions, being in the same format of the vast majority of the questions on the exam.
MTEL Biology: Evolution Chapter Objectives
This chapter helps you assess your familiarity with a variety of information that could be on the MTEL Biology exam. You'll receive the proper prep to correctly answer any evolution-related question in the Genetics, Evolution and Biodiversity subarea of the test with this chapter. This subarea's weighted at around 14% with its 17-19 multiple-choice questions. Evolution could also be one of the content areas that you're asked about in the exam's two open-response items.
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. Hardy-Weinberg Equilibrium I: Overview
In this lesson, we'll examine population genetics in greater detail. We'll also explore notions of Hardy-Weinberg equilibrium for large, stable populations. Is the genetic makeup of our flying hamster population changing? The Hardy-Weinberg equilibrium can serve as a reference point as we try to answer population genetics questions.
3. Hardy-Weinberg Equilibrium II: The Equation
The Hardy-Weinberg equilibrium equation is represented by a polynomial, so we'll have to do some calculations. Don't be intimidated; a few coin tosses can help us make sense of allelic frequencies in a given gene pool.
4. Hardy-Weinberg Equilibrium III: Evolutionary Agents
In this lesson, you'll learn how the Hardy-Weinberg equation relates to different evolutionary agents and population changes. Discover how the equation may be used to discover populations that are not in equilibrium.
5. Natural Selection & Adaptation: Definition, Theory & Examples
How does natural selection help shape the amazing types of animals we witness around us? In this lesson, we'll explore adaptations and what they can tell us about a species' past evolution.
6. Natural Selection: Definition, Types & Examples
We'll take a look at the types of natural selection that can occur. From flying hamsters to moths, you'll start to grasp the different paths organisms can take as they respond to their changing environments over time.
7. Scientific Evidence That Supports Evolution
Evolution explains how species that are present on Earth today are modified descendants of their ancestors. This scientific theory is supported by many different types of evidence, which show how evolution is a very real and natural phenomenon.
8. Fossil Evidence for Biological Diversity, Speciation, & Mass Extinction
One of the best sources of evidence we have for evolution is the fossil record. Fossils provide a wealth of information on how species change over time and for exciting events like mass extinctions and new species formation.
9. Rates of Evolution: Punctuated Equilibrium & Molecular Clock Hypothesis
In general, evolution is a very long process. But rates of evolution can be different for different organisms. In this video lesson, you will identify how scientists study rates of evolution and fill in some of the missing 'steps' in the fossil record.
10. Speciation: Allopatric and Sympatric Speciation
Discover the definition of a species and learn more about how species split. Find out common terms related to the splitting of species and study what role polyploidy plays in the development of a species.
11. Prezygotic Reproductive Barriers & Speciation: Definition & Examples
We may take for granted why animals choose to mate with other animals of similar appearance, but it's not that simple. There are actually biological barriers to reproduction that can prevent even seemingly closely related species from reproducing. This lesson looks at one such category of hindrances, prezygotic barriers, which make fertilization impossible.
12. Postzygotic Reproductive Barriers: Definition & Examples
Do flying hamsters represent a separate species from your run-of-the-mill hamsters? We'll get to the bottom of this by performing crosses between the two hamster types. You'll explore postzygotic reproductive barriers and their possibly tragic consequences.
13. Properties of Alleles
What is a dominant phenotype and how will it affect Adrian's flying hamster research? Tune in as he studies homozygous and heterozygous genotypes and the phenotypes they produce.
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Other chapters within the MTEL Biology (13): Practice & Study Guide course
- MTEL Biology: Scientific Inquiry
- MTEL Biology: Scientific Processes
- MTEL Biology: Analysis & Interpretation of Data
- MTEL Biology: Using Laboratory Equipment
- MTEL Biology: History & Issues in Science
- MTEL Biology: Introduction to Inorganic Chemistry
- MTEL Biology: Organic Chemistry Foundations
- MTEL Biology: Overview of Biochemistry
- MTEL Biology: Cell Biology
- MTEL Biology: Prokaryotic Cells
- MTEL Biology: Cell Communication
- MTEL Biology: Protists, Fungi & Viruses
- MTEL Biology: Plant Cells
- MTEL Biology: Cell Reproduction & Division
- MTEL Biology: Basic Biochemistry of Life
- MTEL Biology: Plant Structures & Functions
- MTEL Biology: Microbiology & Types of Microbes
- MTEL Biology: The Circulatory, Respiratory, Digestive, Excretory & Musculoskeleton Systems
- MTEL Biology: The Nervous, Immune & Endocrine Systems
- MTEL Biology: Reproduction & Development
- MTEL Biology: Introduction to Disease
- MTEL Biology: Disorders & Diseases of the Body Systems
- MTEL Biology: Diabetes, Arthritis & Genetic & Neurological Disorders
- MTEL Biology: Fundamental Body Tissues
- MTEL Biology: Connective Tissue
- MTEL Biology: Muscular System
- MTEL Biology: Gross Anatomy of Muscular System
- MTEL Biology: Skeletal System
- MTEL Biology: Skin Disorders
- MTEL Biology: Alterations of the Musculoskeletal System
- MTEL Biology: Human Genetics
- MTEL Biology: DNA Replication
- MTEL Biology: The Transcription & Translation Process
- MTEL Biology: Genetic Mutation, Variability & Engineering
- MTEL Biology: History of Life
- MTEL Biology: Taxonomic Systems
- MTEL Biology: Ecology
- MTEL Biology: Ecosystems & Biomes
- MTEL Biology: Renewable Resources
- MTEL Biology: Environmental Pollution
- MTEL Biology: Global Warming & Environmental Issues
- MTEL Biology Flashcards