About This Chapter
Characteristics of Life - Chapter Summary
Watch fun videos and review engaging texts to refresh your understanding of the characteristics of life. Topics covered in this chapter include nutrition, vertebrates and invertebrates, adaptation in organisms and much more. Learn the definitions of these topics, and review examples that deepen your understanding. After completing this chapter, you will be able to:
- Identify and describe the characteristics of living things
- Describe sexual reproduction and how genes are inherited from each parent
- Differentiate between the embryonic development and life cycles of vertebrates and invertebrates
- Define nutrition, and discuss six nutrients bodies need
- Share the meaning and importance of homeostasis
- Explain how organisms deal with environmental changes
Enjoy the ability to examine lessons when your schedule permits. Review them from home or anywhere with an Internet connection via your computer or mobile devices. Acquire additional details about the characteristics of life by submitting lesson topic questions to our experts. When ready, test your comprehension of the lessons by taking self-assessment quizzes and a practice chapter exam.
1. Characteristics of Living Things
Have you ever wondered what makes something alive? Learn more about the characteristics that classify something as living. These shared traits can be observed in all living things in the world around us.
2. Sexual Reproduction: Inheriting Genes from Each Parent
Organisms reproduce in order to make offspring. With sexual reproduction the offspring get a combination of the genetic material from two parents. Learn how the male and female reproductive cells, called gametes, come together during fertilization.
3. Embryonic Development & Life Cycles of Invertebrates & Vertebrates
In this lesson we will compare and contrast the embryonic development and life cycles of vertebrates and invertebrates. You'll learn how they are similar and how they are different, and view examples.
4. What is Nutrition?
Nutrition is the process of taking in nutrients from the foods you eat. Learn about the six nutrients needed for energy, maintenance of tissues and regulation of bodily processes: carbohydrates, fats, proteins, water, vitamins and minerals.
5. What Is Homeostasis? - Definition & Examples
Homeostasis can be defined as a property of an organism or system that helps it maintain its parameters within a normal range of values. It is key to life, and failures in homeostasis can lead to diseases like hypertension and diabetes.
6. Environmental Changes & Adaptation in Organisms
In this lesson, we will discuss what happens when an organism is forced to deal with environmental changes. You will learn what adaptation is and how organisms benefit from it.
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