2. Darwin & Natural Selection

By the end of this section you should be able to:

1. Explain why having more offspring than the environments can support is a key aspect of species evolution.

Essential Vocabulary

OffspringSpeciation

2. Identify the sources of variation within a population and how this is different for sexually and asexually reproducing populations

Essential Vocabulary

Sexual reproductionAsexual reproductionGenetic variationMutationMeiosis

3. Use an example to describe evolutionary “fitness.”

Essential Vocabulary

FitnessNatural selection

4. Describe why having a trait, such as a large beak, might increase fitness in some environments, but lower fitness in others.

5. Explain how natural selection requires both variation and selective pressure.

Essential Vocabulary

VariationSelective pressure

6. Model how allele frequencies within a population shift due to environmental change.

Essential Vocabulary

Directional selectionDisruptive selectionStabilizing selection

Vocabulary Review

These are 2 practice vocabulary quizzes to help you review the vocabulary for this section. Each quiz has 10 questions. You need to scroll to see all of the questions and select the "submit" button to complete the quiz and get a score

Darwin & Natural Selection

There are 8 questions on this Content Quiz. You need to scroll to see all of the questions and select the "submit" button to complete the quiz and get a score.

This is a skills quiz to help you review and apply science practices to the content from this module. There are 4 questions. You need to scroll to see all of the questions and select the "submit" button to complete the quiz and get a score.

Report abuse