Campbell Biology Chapter 33: An Introduction to Invertebrates - Videos & Lessons

About This Chapter

The Introduction to Invertebrates chapter of this Campbell Biology Companion Course helps students learn the essential lessons associated with invertebrates. Each of these simple and fun video lessons is about five minutes long and is sequenced to align with the Introduction to Invertebrates textbook chapter.

How It Works:

Identify the lessons in the Campbell Biology Introduction to Invertebrates chapter with which you need help.
Find the corresponding video lessons with this companion course chapter.
Watch fun videos that cover the invertebrates 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:

Traits of Parazoans
Types of Cnidarians
Kinds of flatworms and roundworms
Types of mollusks
Traits of annelids
Behaviors and characteristics of insects
Characteristics of echinoderms

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7 Lessons in Chapter 33: Campbell Biology Chapter 33: An Introduction to Invertebrates

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1. Parazoa: Definition and Characteristics

The sub-kingdom Parazoa is a special group of animals that are unlike any other. In this video lesson, you'll learn about the characteristics of Parazoans and identify what makes them a unique section of the Animal Kingdom.

2. Cnidarians: Types & Examples

Corals and jellyfish belong to a group of invertebrate animals called Cnidarians. In this lesson, you will learn about the classification and biology of these fascinating organisms and their relatives, including one of the most lethal creatures known to mankind: the Australian box jellyfish.

3. Flatworms: Types & Structure

Flatworms belong to the phylum Platyhelminthes, which includes planarians, flukes, and tapeworms. Learn more about these animals as you explore the contents of this lesson.

4. What are Roundworms? - Types, Examples & Characteristics

Have you ever heard of roundworm? Do you know anything about this kind of parasite? In this lesson, you will learn about the different types of roundworms and some of the characteristics they share.

5. Mollusks: Characteristics & Types

Do you like to eat seafood, hunt for seashells, or learn about scary sea creatures? If so, then you'll want to learn about the different types of mollusks, which include the tasty bivalves, the cool-looking gastropods, and the weird cephalopods.

6. Annelids: Types & Structure

Annelids are worms with segmented bodies. Annelids are divided into three main classes. A brief description and example of each class will be provided in this lesson.

7. Echinoderms: Traits, Types & Roles

After watching this lesson, you'll be well on your way to being an echinoderm expert! For example, you'll learn that sea cucumbers help clean up the ocean floor and that starfish can grow back any arms that are broken or damaged.

Chapter Practice Exam

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Practice Final Exam

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