Adaptive Features
Overview
A cactus storing water in a fat green stem, a water lily with leaves that float, every species carries inherited features that fit it to its surroundings. These adaptive features are the visible result of natural selection, and learning to read them lets you explain how an organism survives where it lives.
In this lesson you will define an adaptive feature, practise describing the adaptations of a species from a picture or description, and (for Extended) explain in detail how xerophytes are adapted to dry conditions and hydrophytes to life in water.
Objectives
- Describe an adaptive feature as an inherited feature that helps an organism to survive and reproduce in its environment
- Interpret images or other information about a species to describe its adaptive features
- [Supplement] Explain the adaptive features of hydrophytes and xerophytes to their environments
Lesson Note
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Lesson Evaluation
Congratulations on completing the lesson on Adaptive Features. Now that youve explored the key concepts and ideas, its time to put your knowledge to the test. This section offers a variety of practice questions designed to reinforce your understanding and help you gauge your grasp of the material.
You will encounter a mix of question types, including multiple-choice questions, short answer questions, and essay questions. Each question is thoughtfully crafted to assess different aspects of your knowledge and critical thinking skills.
Use this evaluation section as an opportunity to reinforce your understanding of the topic and to identify any areas where you may need additional study. Don't be discouraged by any challenges you encounter; instead, view them as opportunities for growth and improvement.
- An adaptive feature is best described as: A. a learned behaviour B. an inherited feature that helps an organism survive and reproduce C. a temporary change caused by the environment D. a disease Answer: B
- A cactus has leaves reduced to spines mainly to: A. attract insects B. reduce water loss by transpiration C. increase photosynthesis D. store starch Answer: B
- A plant adapted to live in very dry conditions is called a: A. hydrophyte B. xerophyte C. saprophyte D. epiphyte Answer: B
- Why does a water lily have stomata only on the upper surface of its leaves? A. to reduce photosynthesis B. because the upper surface is in the air for gas exchange C. to store water D. to attract insects Answer: B
- Which feature is an adaptation of a hydrophyte? A. thick waxy cuticle B. sunken stomata C. large air spaces in the leaves for buoyancy D. spines instead of leaves Answer: C
Available on the Green Bridge App
Download the Green Bridge CBT app on your phone or computer to access full lesson notes, practice questions, and more.
Available on the Green Bridge App
Download the Green Bridge CBT app on your phone or computer to access full lesson notes, practice questions, and more.
Recommended Books
Practice Mock Questions
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