Ch 25: Holt McDougal Modern Biology Chapter 25: Protists

About This Chapter

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

How it works:

  • Identify the lessons in the Holt McDougal Modern Biology Protists chapter with which you need help.
  • Find the corresponding video lessons within this companion course chapter.
  • Watch fun videos that cover the protist 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 protists
  • Characteristics and types of protozoa
  • Characteristics of algae
  • Plant-like and fungus-like protists
  • Transmission and symptoms of giardia
  • Causes and symptoms of cryptosporidiosis
  • Transmission and symptoms of malaria
  • Symptoms and treatment of trichomoniasis

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

8 Lessons in Chapter 25: Holt McDougal Modern Biology Chapter 25: Protists
Test your knowledge with a 30-question chapter practice test
The Evolution of Protists: Importance & Evolutionary History

1. The Evolution of Protists: Importance & Evolutionary History

Some organisms are very familiar. However, there are some that play vital roles in our lives that we don't even think about. We will look at a group of one of these unfamiliar kingdoms - protists.

What are Protozoa? - Definition, Characteristics & Examples

2. What are Protozoa? - Definition, Characteristics & Examples

Taxonomy is the realm of science that attempts to group similar organisms together, which is not always an easy task. In this lesson, we will examine the protozoa, a diverse group of organisms that didn't really fit anywhere else.

What is Algae? - Definition, Characteristics & Examples

3. What is Algae? - Definition, Characteristics & Examples

Plants are not the only organisms capable of carrying out photosynthesis. In this lesson we will look at algae and how an algal species can be differentiated from other organisms and microbes.

What Are Algae Blooms? - Definition & Examples

4. What Are Algae Blooms? - Definition & Examples

You may have heard of algae blooms and red tides, but what exactly are they? Algae blooms develop from excess nutrient runoff into aquatic systems, and this nutrient imbalance can cause a variety of issues.

What is Giardia? - Causes, Transmission & Symptoms

5. What is Giardia? - Causes, Transmission & Symptoms

The anaerobic parasite Giardia lamblia is one of the most common intestinal protozoans in the United States. In this lesson, we examine the major characteristics of Giardia and discuss treatment and prevention options.

Cryptosporidiosis: Causes & Symptoms

6. Cryptosporidiosis: Causes & Symptoms

Cryptosporidium is a protozoan parasite that can cause serious gastrointestinal distress. In this lesson, we will investigate the general characteristics of Crypto and what symptoms to expect if you are ever infected.

What is Malaria? - Causes, Transmission & Symptoms

7. What is Malaria? - Causes, Transmission & Symptoms

Malaria is a devastating disease that impacts millions of people worldwide every year. In this lesson, we will explore the organism that causes malaria and the disease itself.

Trichomoniasis: Causes, Symptoms & Treatment

8. Trichomoniasis: Causes, Symptoms & Treatment

Protozoa don't often cause sexually transmitted diseases. One exception is Trichomonas vaginalis. In this lesson we will investigate the major characteristics of this unique parasite.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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