Natural Selection Worksheet
Explore the principles of natural selection, including variation, inheritance, struggle for existence, and differential survival and reproduction.
Includes
Standards
Topics
Natural Selection: Mechanisms of Evolution
Name:
Date:
Score:
Read each question carefully and answer to the best of your ability. Use complete sentences for short answer questions.
1. Which of the following is NOT a principle of natural selection?
Variation within a population
Inheritance of acquired traits
Differential survival and reproduction
Struggle for existence
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 by which new species arise
The movement of individuals into or out of a population
3. Natural selection is often summarized as 'survival of the ', meaning those individuals best suited to their environment are more likely to survive and reproduce.
4. The ultimate source of new genetic variation in a population is .
5. Explain the role of genetic variation in natural selection.
6. Observe the image of Darwin's finches below. How do the different beak shapes illustrate the concept of natural selection?
7. Individuals can evolve during their lifetime by acquiring traits that help them adapt to their environment.
True
False
8. Natural selection acts directly on an organism's genotype, not its phenotype.
True
False
Match the term with its definition.
9. Fitness
a. The process by which organisms better adapted to their environment tend to survive and produce more offspring.
10. Natural Selection
b. The ability of an organism to survive and reproduce in its environment.
11. Mutation
c. A random change in the DNA sequence.
Related Worksheets
Genetic Variation Worksheet
Explore the mechanisms of genetic variation in Grade 11 Biology, including mutation, recombination, and their impact on evolution.
The Cell Membrane: Structure and Function
An 11th-grade science worksheet focusing on the structure, components, and functions of the cell membrane, including transport mechanisms.
Homeostasis in Biology
An 11th-grade biology worksheet focusing on homeostasis, negative feedback loops, and the regulation of internal body conditions.
Cell Energy: Photosynthesis and Cellular Respiration
Explore the fundamental processes of photosynthesis and cellular respiration, understanding how cells generate and utilize energy.
Hair Analysis Worksheet
Explore the science behind hair analysis, including hair structure, growth phases, and forensic applications, suitable for Grade 11 science students.
Human Skull Anatomy Worksheet
Explore the complex anatomy and functions of the human skull with this Grade 11 science worksheet.
Lung Volumes and Capacities Worksheet
Explore the different lung volumes and capacities, their definitions, and their significance in respiratory physiology for Grade 11 science students.
Urinary System Worksheet
A Grade 11 science worksheet covering the structure and function of the human urinary system, including key organs, processes, and related conditions.