About This Chapter
Change in Living Things - Chapter Summary
This chapter presents information about how animals and plants change over the time it takes for the cycle of life. Get to know adaptation and natural selection, and requirements found in the environment that are necessary for reproduction, growth and dynamic homeostasis.
Examine the meaning, effects and examples of external and internal stimuli. Analyze plant adaptation and responses to environmental stimuli and stress. See additional lesson information such as:
- Definition, stages and examples of what a life cycle is
- Different plant types and their life cycles
- When life copies DNA wrong creating a resulting mutation
- Feedback systems and their role in the regulation of reproduction, growth and dynamic homeostasis
- Temperature regulation and homeostasis in humans
- Adaptation to stress and homeostasis
You can access the lessons in this chapter from your computer or your Internet-ready mobile device. Track the progress you are making on this study program through your dashboard.
1. What is a Life Cycle? - Definition, Stages & Examples
In this lesson, you'll learn the definition of 'life cycle' and find out about the three basic stages of a life cycle. You'll also explore examples of different life cycles.
2. Life Cycles of Different Types of Plants
From spores to gametophytes to flowers, plants have many different life cycles. This lesson will focus on the life cycles of three groups of plants: the flowering angiosperms, the ferns and the mosses.
3. Mutations: When DNA Is Copied Wrong
In this lesson, we will learn how mutations, or errors in DNA, come about, what kinds of effects they may have, and how they can impact populations as a whole.
4. Natural Selection & Adaptation: Definition, Theory & Examples
How does natural selection help shape the amazing types of animals we witness around us? In this lesson, we'll explore adaptations and what they can tell us about a species' past evolution.
5. Internal & External Stimuli: Definition & Examples
What are internal and external stimuli? Learn how the body uses messages from outside and inside of you to maintain perfect balance and keep you healthy and safe.
6. Environmental Stimuli & Stress: Plant Adaptations & Responses
Plants get stressed out about a lot of stuff, like floods, droughts, high heat, and cold. And they have ways in which they deal with these kinds of stress. This lesson gives some examples of how this occurs.
7. The Environmental Requirements for Growth, Reproduction & Dynamic Homeostasis
Cells need to maintain internal environments that are different from their external environments in order to grow and reproduce. In this video lesson, you will understand some ways that cells can control their internal conditions to ensure proper biological functioning.
8. Using Feedback Systems to Regulate Growth, Reproduction & Dynamic Homeostasis
In order to maintain specific internal conditions, organisms use feedback mechanisms. Feedback is essential to the regulation of internal environments, which allows for proper biological functioning.
9. Homeostasis and Temperature Regulation in Humans
Do you wonder how your body is able to maintain a consistent temperature? Have you ever questioned why you get goosebumps when you're cold? This lesson will introduce you to homeostasis and answer your questions about body temperature regulation and reactions, like goosebumps.
10. Homeostasis and Adaptation to Stress
Homeostasis can seem complicated, but really it's just a balancing act. This lesson will look at how stress can affect us and the important part it plays in maintaining homeostasis.
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