Section Four- Evolution and Inheritance: Variation

• Science
• Primary Education

Section Four- Evolution and Inheritance: Variation

Which of the following is an example of behavioral adaptation?

1. Having sharp claws for hunting.
2. Growing taller to reach food.
3. Developing resistance to a disease.
4. Migration in birds.

What causes variation in a population?

1. Natural disasters.
2. Human interference.
3. Random chance.
4. Genetic inheritance and environmental factors.

What is the purpose of adaptation?

1. To help organisms survive and thrive in their environment.
2. To eliminate competition.
3. To create new species.
4. To change an organism's DNA.

Which of the following is an example of a physical adaptation?

1. Developing a new language.
2. Camouflage in animals.
3. Learning to ride a bike.
4. Changing fur color due to seasonal change.

What is variation?

1. Differences in traits or characteristics among individuals.
2. The process of adaptation.
3. A type of genetic mutation.
4. The study of different species.

Learning Objectives

• At the end of the lesson, you should understand why offspring resemble their parents.
• At the end of the lesson, you should be able to explain what variation is and why it is important.

What do you already know about variation?

Slide 1: Inheritance of Characteristics

• Offspring often resemble their parents.
• Inheritance is the process by which characteristics are passed on from parents to offspring.

Slide 2: Variation

• Offspring are not exact replicas of their parents.
• Variation refers to the differences in physical or genetic characteristics between individuals.
• Variation makes every individual unique and contributes to the diversity of life.

Slide 3: Importance of Variation

• Variation is important as it allows for adaptation to changing environments.
• It increases the chances of survival and successful reproduction.
• Variation is the basis for natural selection and evolution.

Slide 4: Recap

• Offspring resemble their parents due to inheritance.
• However, they also have unique features that contribute to variation.
• Variation is important for adaptation, survival, and evolution.

Definition List

• Inheritance: The process by which characteristics are passed on from parents to offspring
• Variation: The differences in physical or genetic characteristics between individuals

Write down 3 things you learned in this lesson.

Have students enter three things they learned in this lesson. With this they can indicate their own learning efficiency of this lesson.

Write down 2 things you want to know more about.

Here, students enter two things they would like to know more about. This not only increases involvement, but also gives them more ownership.

Ask 1 question about something you haven't quite understood yet.

The students indicate here (in question form) with which part of the material they still have difficulty. For the teacher, this not only provides insight into the extent to which the students understand/master the material, but also a good starting point for the next lesson.