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Ch 32: Holt McDougal Modern Biology Chapter 32: Introduction to Animals

About This Chapter

The Introduction to Animals chapter of this Holt McDougal Modern Biology textbook companion course helps students learn the essential modern biology lessons of animals. Each of these simple and fun video lessons is about five minutes long and is sequenced to align with the Introduction to Animals textbook chapter.

How it works:

  • Identify the lessons in the Holt McDougal Modern Biology Introduction to Animals chapter with which you need help.
  • Find the corresponding video lessons within this companion course chapter.
  • Watch fun videos that cover the animal topics you need to learn or review.
  • Complete the quizzes to test your understanding.
  • If you need additional help, rewatch the videos until you've mastered the material or submit a question for one of our instructors.

Students will learn:

  • Evolutionary history of animals
  • Animal body plans
  • Characteristics and origin of vertebrates
  • Definition and types of invertebrates
  • Animal reproduction and development
  • Characteristics of protosomes

Holt McDougal Modern Biology is a registered trademark of Houghton Mifflin Harcourt, which is not affiliated with Study.com.

6 Lessons in Chapter 32: Holt McDougal Modern Biology Chapter 32: Introduction to Animals
Test your knowledge with a 30-question chapter practice test
The Evolution of Animals: Importance & Evolutionary History

1. The Evolution of Animals: Importance & Evolutionary History

The animal kingdom ranges from simple organisms like sponges to complex organisms like humans. We will look at some defining characteristics of animals as well as examples of both invertebrates and vertebrates.

Animal Body Plans: Classifications and Features

2. Animal Body Plans: Classifications and Features

The Animal Kingdom is diverse and complex. How do we make sense of it all? Scientists use body plans to classify and organize the animals of Earth, making it much easier to differentiate between them.

Vertebrates: Origin, Characteristics & Diversity

3. Vertebrates: Origin, Characteristics & Diversity

Vertebrates are diverse and widespread across Earth, but this was not always the case. In this lesson you'll learn about the origins and evolution of these animals, as well as explore their vast diversity.

Invertebrates: Definition & Examples

4. Invertebrates: Definition & Examples

From bees to lobsters and octopi to cockroaches, invertebrates are everywhere. This lesson introduces them as a major group within biology and discusses their relationship with the human race.

Overview of Animal Reproduction and Development

5. Overview of Animal Reproduction and Development

At this stage in life, you likely know where babies come from. However, did you know that some animals can make clones of themselves and reproduce sexually too? In this lesson, you'll learn more about sexual reproduction and early vertebrate development.

Protostomes: Definition and Characteristics

6. Protostomes: Definition and Characteristics

Though you may not be able to tell just by looking at them, protostomes are an evolutionarily related group based on shared characteristics of their body plans. In this lesson, you will identify these characteristics, as well as see examples of the variety of animals this group encompasses.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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