D4.1 Natural Selection
11 review questions with answers for D4.1 Natural Selection, marked SL and HL. Read them here, or play the set as a class game on the projector. Free to host, and students join with a code.
Selection that removes both extremes and favors the average?
- Stabilizing selectionRight answer
- Industrial Melanism
- Directional selection
- Selective Breeding
All 11 questions and answers
Selection that removes both extremes and favors the average?
Answer: Stabilizing selection
Selection that favors one extreme and shifts the population mean?
Answer: Directional selection
Selection that favors both extremes and can lead to speciation?
Answer: Disruptive selection
Random change in allele frequency, most impactful in small populations?
Answer: Genetic drift
Drastic reduction in population size (e.g., natural disaster) that reduces genetic diversity?
Answer: Bottleneck effect
Loss of genetic variation when a small group colonizes a new area?
Answer: Founder effect
The mechanism where organisms better adapted to their environment tend to survive and produce more offspring?
Answer: Natural Selection
A change in the heritable characteristics of a population over time?
Answer: Evolution
The process by which humans breed animals or plants for specific traits?
Answer: Selective Breeding
Classic example of natural selection triggered by industrial pollution?
Answer: Industrial Melanism
The primary sources of variation in a population?
Answer: Mutation, Meiosis, and Sexual Reproduction
Play it as a class game
Play this set opens it in splycr, where you can host it for your class straight away. Hosting needs no account: put the room code on the projector, and students join from a phone with the code and their first name. Each question plays as multiple choice, and the three wrong options are other answers from the same set.