Biology

6. when a population suddenly gets much smaller
8. the total sum of all genetic information
12. man who developed the theory of evolution by natural selection
14. distinguishing, noticeable feature, which may be learned or acquired
16. made of four forces
17. change in the heritable characteristics
20. when a few individuals start a fund population
21. inherent, genetic, or deeply ingrained qualities
22. an individual animal, plant, or single-celled life form
23. organisms better suited to their environment and are more likely to survive and reproduce

1. anatomical remnants or behaviors that have lost all or most of their original purpose
2. anatomical features in different species that share a common evolutionary origin
3. random change in allele frequencies that occur in a small population
4. permanent change in an organism's DNA
5. group of living organisms consisting of similar individuals
7. one of two or more alternative forms of a gene
9. number of species in an area
10. people choosing what organism they want to breed
11. person who made there own equilibrium
13. biological features in different species that share similar functions but have distinct origins
15. when people move in or out of a population
18. a person who studies, observes, and specializes in natural history
19. the study of the spatial distribution of plants, animals, and ecosystems across the Earth