Biology Crossword
Across
- 2. flow physical movement of alleles from one population to another
- 7. inherited trait that is selected over time because it allows organisms to better survive in their environment
- 10. where animals or plants naturally live and grow
- 12. process in which two or more species evolve in response to changes in each other
- 13. All the living and non-living things that interect in an area.
- 15. A group of organisms of the same species populating a given area
- 16. trace of an organism from the past
- 20. Consumers that eat only plants
- 21. Different populations that live together in a defined area
- 22. A close relationship; both species benefit
- 24. Autotrophs convert light energy into chemical energy
- 27. A close relationship; one species benefits, the other is harmed
- 28. frequency proportion of one allele, compared with all the alleles for that trait, in the gene pool
- 29. Consumers that eat only animals
- 30. structure remnants of an organ or structure that functioned in an earlier ancestor
Down
- 1. principle that states that the changes in landforms result from slow changes over a long period of time
- 2. isolation isolation between populations due to physical barriers
- 3. drift change in allele frequencies due to chance alone, occurring most commonly in small populations
- 4. observable change in the allele frequency of a population over a few generations
- 5. The relation between two different species of organisms that are interdependent
- 6. differences in physical traits of an individual from the group to which it belongs
- 8. the study of the distribution of organisms around the world
- 9. factors Living things in an ecosystem
- 11. all of the individuals of a species that live in the same area
- 14. any living thing
- 17. group of organisms so similar to one another that they can breed and produce fertile offspring
- 18. Organism that can make their own food
- 19. Factors Non-living factors including temperature, water, sunlight, wind, rocks and soil
- 23. pool collection of alleles found in all of the individuals of a population
- 25. Species Species that enter new ecosystems and multiply, harming native species and their habitats
- 26. Taxonomic group whose members can interbreed