Natural Selection Worksheet
Explore the principles of natural selection, adaptation, and evolution with this Grade 8 science worksheet.
Includes
Standards
Topics
Natural Selection: Survival of the Fittest
Name:
Date:
Score:
Read each question carefully and answer to the best of your ability. This worksheet will test your understanding of natural selection and its role in evolution.
1. Which scientist is credited with developing the theory of natural selection?
Gregor Mendel
Charles Darwin
Louis Pasteur
Rosalind Franklin
2. What is an adaptation?
A sudden change in an organism's DNA.
A trait that helps an organism survive and reproduce in its environment.
The process of organisms moving to a new habitat.
The extinction of a species.
3. Natural selection is the process by which organisms better adapted to their tend to survive and produce more offspring.
4. The variety of life within an ecosystem is known as .
5. Explain how the beaks of Darwin's finches are an example of natural selection.
6. All mutations are harmful to an organism.
True
False
7. Sexual reproduction increases genetic variation within a population.
True
False
Match each term with its definition.
8. Evolution
a. A group of individuals of the same species living in the same area.
9. Population
b. The process by which species change over time.
10. Variation
c. Differences among individuals within a species.
11. During the Industrial Revolution, pollution darkened tree trunks. Explain how this led to a change in the peppered moth population due to natural selection.
Related Worksheets
The Human Reproductive System
Explore the structures and functions of the male and female reproductive systems, including key hormones and processes.
Grade 8 Fungi Worksheet
Explore the fascinating world of fungi with this Grade 8 science worksheet covering their characteristics, reproduction, and ecological roles.
Interactions in an Ecosystem
Explore the complex relationships and interactions within ecosystems, including food webs, energy flow, and symbiotic relationships, for Grade 8 Science.
Immune System Basics
An introductory worksheet on the human immune system for 8th-grade science students.
Grade 8 Science: The Human Eye
Explore the anatomy and function of the human eye, including its parts, how vision works, and common eye conditions.
Ecological Relationships Worksheet
Explore ecological relationships including predation, competition, mutualism, commensalism, and parasitism with this Grade 8 Science worksheet.
Grade 8 Taxonomy Worksheet
Explore the principles of biological classification with this Grade 8 Science worksheet on Taxonomy, covering hierarchical ranks, binomial nomenclature, and the characteristics of different kingdoms.
Energy Flow in Ecosystems
Explore the concepts of energy flow, food chains, food webs, and ecological pyramids in ecosystems.