Evolution
Across
- 2. DOMESTICATION: The process of taming an animal or plant for human use.
- 3. SELECTIVE BREEDING: Another term for artificial selection.
- 5. The struggle between organisms for food, water, or territory.
- 7. TRAIT: A specific characteristic of an individual, like eye color or leaf shape.
- 8. EXTINCTION: When all members of a species have died out.
- 9. GENES: Units of heredity passed from parents to offspring.
- 12. VARIATION: The natural differences in traits between individuals of the same species.
- 13. The passing of physical or mental characteristics genetically from one generation to another.
- 14. The formation of a new and distinct species in the course of evolution.
- 15. ANCESTOR: An ancestor shared by two or more descendant species.
- 16. SELECTION: The process where organisms best suited to their environment survive and reproduce.
Down
- 1. POPULATION: A group of individuals of the same species living in the same area.
- 2. FITNESS: An organism's ability to survive and produce offspring.
- 3. The process by which populations change over long periods of time.
- 4. MUTATION: A random change in DNA that can create new traits.
- 6. The remains or traces of an organism that lived long ago.
- 8. SELECTION: When humans choose specific traits they want in plants or animals.
- 10. A group of similar organisms that can mate and produce fertile offspring.
- 11. ADAPTATION: A trait that helps an organism survive and reproduce in its environment.
- 12. HOMOLOGOUS: Structures in different species that are similar because of common ancestry.