About This Chapter
ILTS Biology: Biological Evolution - Chapter Summary
Let us aid in your preparation for the ILTS Biology exam with this chapter's lessons on topics related to evolutionary theory, classification of living organisms and speciation. Subjects explored in this chapter include:
- Evolutionary theory and evidence supporting it
- How organisms are classified through taxonomy
- The use of taxonomic keys
- The Hardy-Weinberg equation
- Adaptation and natural selection
- Types of speciation
- Genetic variability
- Random mutation
Our instructors have created short, entertaining video lessons that reinforce your understanding of information that will be featured on the ILTS Biology exam. Every lesson includes video tags that allow you to jump back to specific parts of the video without having to re-watch the whole lesson. Lesson quizzes and a chapter exam let you evaluate your knowledge, and there's even a sheet of questions you can print out for offline study.
ILTS Biology: Biological Evolution Chapter Objectives
In Illinois, passing the ILTS Biology exam is one of the requirements for certification to teach the subject. The exam's questions are divided into six subareas. Questions on the material this chapter discusses are in the Cell Biology, Heredity and Evolution subarea.
Like the exam, our lesson quizzes consist of multiple-choice questions. In addition to providing practice answering questions in this format, the quizzes show you where your knowledge may be lacking, giving you a head's up on where to put in some extra review before exam day.
1. Evolution Theory, Evidence & Rates
This lesson will briefly introduce the theory of evolution, discuss a few pieces of evidence supporting the theory of evolution, and discuss the rates of evolution.
2. Classification Systems: Classical Taxonomy, Phenetics & Cladistics
How do we begin to sort out the millions of species on Earth? In this lesson, we will explore three of the most common classification systems used by modern science. Then, you will be able to test your understanding with a brief quiz.
3. Taxonomy: Classification and Naming of Living Things
The name you give to a living thing may be completely different than the name someone else uses. In science, we use a common naming system for all living things to avoid confusion. This lesson will explore the basics of our classification system.
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 and Random Mutation
Evolution is driven by variation among populations. The amount of variability determines how well a population can adapt to environmental changes, while random mutations can provide new variations that help a population adapt to unexpected changes.
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Other chapters within the ILTS Science - Biology (105): Practice and Study Guide course
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