About This Chapter
Praxis Biology: Classification of Organisms - Chapter Summary
You can review the differences between living and non-living things for the Praxis II Biology Content Knowledge exam with this chapter. Use the lessons to refresh your memory of how living things are classified and the methods of depiction. This chapter reveals the evolutionary histories of plants, fungi, animals and humans, along with a group of organisms that falls into the first three in that list. All of the following topics are included in these lessons:
- Qualities of living and non-living things
- Taxonomy and binomial nomenclature
- Definition and characteristics of prokaryotes and protists
- Evolution classifications of fungi, plants, animals and humans
- How viruses are classified
- Types of reproduction or replication for various organisms
Each lesson offers a video, transcript and quiz. You can use the lessons as many times as you like and can easily find specific topics in the videos with the handy video tags. Many lessons also provide additional links to text lessons for further clarification.
Praxis Biology: Classification of Organisms Objectives
The Praxis II Biology Content Knowledge exam has 150 questions covering six content areas. The Diversity of Life, Plants and Animals portion of the Praxis exam analyzes your understanding of the topics listed above with about 45 questions that constitute about 30% of the test. All the questions on the entire test are multiple-choice, and our quizzes can help you prepare for the style of questions you'll find on the test.
1. The Defining Characteristics of Living Organisms
A house is not a living thing, but the people, animals, and plants living inside it are. So how do we define 'life'? Learn about seven characteristics that all living organisms have in common, no matter how different they may look on the outside.
2. 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.
3. Cladograms and Phylogenetic Trees: Evolution Classifications
Family trees help show how people are related to each other. Similarly, scientists use cladograms and phylogenetic trees to study the relationships between organisms.
4. The Evolution of Prokaryotes: Archaebacteria and Eubacteria
The first living organisms on Earth were bacteria. These small organisms still exist today and are responsible for many things. In this lesson, we will explore both ancient bacteria and true bacteria.
5. 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.
6. The Evolution of Plants and Fungi: Characteristics & Evolutionary History
In early classification systems, plants and fungi were grouped together. While there are some similarities between these two kingdoms, there are some key differences that we will explore.
7. 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.
8. The Evolution of Humans: Characteristics & Evolutionary History
Just like other organisms, humans have changed over time. We will look at the evolution of humans as well as connections with our primate relatives, including Old World and New World primates.
9. What Are Viruses? - Definition, Structure & Function
In this lesson, you'll learn some historical facts about viruses and the material they are composed of. Find out more as we review the capsid, nucleic acids, the viral envelope, viruses, virions, bacteriophages and virology.
10. Classification of Viruses: Viral Genome and Replication Scheme
Find out how viruses are classified based on their being double-stranded, single-stranded, positive-sense, negative-sense, or by having something called reverse transcriptase.
11. Asexual vs. Sexual Reproduction: Comparison & Characteristics
Did you know that some organisms can reproduce without a mate? Check out this video lesson on asexual versus sexual reproduction to discover the different ways organisms can reproduce and the main differences between mitosis and meiosis.
12. Growth, Reproduction & Dynamic Homeostasis in Organisms
What makes something a living thing? In this lesson, you will refresh your knowledge of three important features of living things -- growth, reproduction, and homeostasis.
13. Evolution of Invertebrates: Symmetry & Specialization
If you think you can avoid invertebrates, think again! These guys are everywhere, and through evolution many have developed into complex creatures. Let's explore these developments and how they can be beneficial to these world-dominating animals.
Earning College Credit
Did you know… We have over 200 college courses that prepare you to earn credit by exam that is accepted by over 1,500 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.
To learn more, visit our Earning Credit Page
Transferring credit to the school of your choice
Not sure what college you want to attend yet? Study.com has thousands of articles about every imaginable degree, area of study and career path that can help you find the school that's right for you.
Other chapters within the Praxis Biology (5235): Practice & Study Guide course
- Praxis Biology: Science Principles - Processes and Disciplines
- Praxis Biology: Science Principles - Hypotheses, Theories and Change
- Praxis Biology: Science Principles - Numbers
- Praxis Biology: Science Principles - Interpretation and Models
- Praxis Biology: Laboratory Safety
- Praxis Biology: Laboratory Equipment & Measurements
- Praxis Biology: Molecular Structure Basics
- Praxis Biology: Chemical Reactions
- Praxis Biology: Biological Molecules and Processes
- Praxis Biology: Cellular Energy Flow
- Praxis Biology: Cell Structures and Functions
- Praxis Biology: Cellular Division
- Praxis Biology: DNA and Replication
- Praxis Biology: RNA and Gene Expression
- Praxis Biology: Mutations and Other Genetic Changes
- Praxis Biology: Biology Lab Techniques
- Praxis Biology: DNA Technology
- Praxis Biology: Genetics and Inheritance
- Praxis Biology: Human Genetics
- Praxis Biology: Species, Populations and Evolution
- Praxis Biology: Origin of Life on Earth
- Praxis Biology: Human Anatomy and Physiology
- Praxis Biology: Immunology
- Praxis Biology: Animal Reproduction and Development
- Praxis Biology: Plant Biology
- Praxis Biology: Plant Reproduction & Growth
- Praxis Biology: Population Ecology
- Praxis Biology: Ecosystem Ecology
- Praxis Biology: Human Impacts on the Environment
- Praxis Biology: Environment and Society
- Praxis Biology Flashcards