About This Chapter
Diversity & Classifications in Biology - Chapter Summary
As you work through this chapter, you'll study the systems used in biology to identify and classify living things. You can learn more about the domains of life, the kingdoms of living things, and the characteristics of protists, viruses and other single-celled organisms. Further, you will examine the evolution of chordates, and identify the traits that characterize bryophytes and gymnosperms. By the end of the chapter, you should know how to:
- Understand how biodiversity is connected to the stability of an ecosystem
- Describe mutualism and biomass
- Name the three domains and five kingdoms of life
- Define taxonomic classification systems and binomial nomenclature
- Identify monerans, protista, fungi, viruses and prions
- Discuss the characteristics and types of gymnosperms and bryophytes
- Explain how chordates evolved
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1. What is Biodiversity? - Definition and Relation to Ecosystem Stability
Imagine making a list of all of the species you have ever heard of; it would be an enormous list! There are many different species on this planet. This lesson will explore the diversity of species, as well as the different types of diversity and how diversity of life is essential for maintaining healthy ecosystems.
2. Mutualism: Examples & Definition
There are many types of relationships in nature. This lesson explores mutualism, a type of symbiotic relationship between two organisms. These fascinating relationships are like survival partnerships between species.
3. What Is Biomass? - Definition & Explanation
In this lesson, you'll learn what ecologists use to quantify the amount of matter in an ecological community. This often relates to the amount of energy being produced by various parts of that community.
4. 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.
5. The Three Domains of Life
Biology is a rather mysterious thing. How are we related to fish? How can you say we are related to amoebas? We will explore the idea of taxonomy here, sticking with the most generalized concept, the domain.
6. Binomial Nomenclature: Definition, Classification & System
Life on Earth is incredibly diverse, with over one million species. But have you ever wondered how all these organisms are named? In this lesson, you'll learn about the scientific naming system called binomial nomenclature.
7. What are the Kingdoms of Life?
In this lesson, we'll be exploring the wide world of living things. Today, you'll learn the largest category for classifying living organisms, the five kingdoms of life. We'll look at what type of organisms are classified in each kingdom and the criteria scientists use to sort them.
8. Monerans: Definition, Examples & Types
In this lesson you'll learn about monerans, the group of organisms that bacteria belong to. Discover the name's history and the function(s) of different types of bacteria in the environment.
9. Kingdom Protista: Definition, Characteristics & Examples
Learn about the requirements to enter Kingdom Protista, one of the five kingdoms of life. Discover and read about the organisms that can be found there.
10. What are Fungi? - Types and Characteristics
In this lesson, we will examine the group of organisms known as the fungi. This group includes the familiar organisms mushrooms, yeasts and molds. We will look at several major characteristics of fungi, as well as a few disease-causing fungi.
11. Infectious Agents: Viruses, Viroids & Prions
While we tend to think of things that can actively kill us as being living entities, the fact is that non-living entities can actively kill us, as well. This lesson explores some of those entities, including viruses, viroids, and prions.
12. Gymnosperms: Characteristics, Definition & Types
In this lesson, we will explore gymnosperms, which are a unique group of plants that do not have bright flowers or seeds that are protected in fruit. We will examine types of them as well as their characteristics and the way they reproduce.
13. Bryophytes: Definition, Types, Characteristics & Examples
You may be familiar with green moss growing on a rock. Moss is a bryophyte, a type of nonvascular plant found near fresh water. This lesson describes bryophytes, including mosses, liverworts, and hornworts.
14. Evolution of Chordates
Chordates are a diverse and interesting group of animals. You might be surprised to find out what belongs to phylum Chordata, so check out this lesson to learn more about what sets them apart and what keeps them together.
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