Natural Selection
Across
- 4. a related organism from a previous generation
- 6. The reason why something happens
- 8. a result or consequence
- 10. the process by which the distribution of traits in a population changes over many generations
- 12. a specific form of a gene that provides instructions for making a particular protein molecule
- 14. an organism produced as a result of reproduction
- 15. the number of individuals with each trait in a population.
- 17. a characteristic that all members of a species have
- 18. a group of individuals born and living at about the same time
- 19. a young insect that looks somewhat different from the adult
- 22. a trait that makes it more likely that an individual will survive in a specific environment
- 23. something in the environment that affects an individual's chances of surviving
- 24. specific characteristic of an individual
- 25. a group of the same type of organism living in the same area
- 26. an instruction for making a protein molecule
- 27. a more recent species that evolved from an ancestor population
- 29. Non-living things
- 31. a type of molecule that genes and chromosomes are made of
- 32. a random change to a gene that sometimes results in a new trait
- 33. a graph that uses bars to show how characteristics or values are distributed within a group
- 34. a group of organisms of the same kind (in one or more populations) that do not reproduce with organisms from any other group
Down
- 1. a trait that makes it less likely that an individual will survive in a specific environment
- 2. to stay alive
- 3. to receive genes from a parent
- 5. any difference in traits between individual organisms
- 7. an animal that is hunted or killed by another animal for food
- 9. An older population from which two or more species descended
- 11. a long piece of DNA that contains many genes
- 13. an idea about what might happen that is based on what you already know
- 16. an animal that hunts and kills other animals for food
- 20. the process in which two parents pass on their genes to create offspring
- 21. living things, such as plants, animals, and bacteria
- 28. a way of hiding by looking the same as the background
- 30. living things