Biology

2. According to Charles ___________, individuals best suited to their environment survive and reproduce most successfully.
4. The term fitness refers to an organism's ability to survive and _________ in a specific environment.
6. According to Darwin, the word _______________ would indicate organisms' ability to survive and reproduce in their particular environments.
10. Principle that living things were derived from common ancestors.
12. Artificial selection as practiced by farmers is also called...
14. Natural selection on single-gene traits can lead to changes in ______________ frequencies.
16. Which process does NOT release energy from glucose?
18. the branch of biology that deals with the relations of organisms to one another and to their physical surroundings.
21. Process by which individuals that are better suited to their environment survive and reproduce most successfully.
22. When individuals near the center of the curve have higher fitness than individuals at either end of the curve, the result is....
23. Preserved remains or evidence of an ancient organism.
25. Inherited characteristic that increases chances of survival

1. In a population of snakes with a range of body lengths, if the longest individuals have the highest fitness, ____________________ selection is likely to occur.
3. (adenosine triphosphate) main energy source that cells use for most of their work
5. In a gene pool, as the relative frequency of one allele for a trait increases, the relative frequencies of other alleles for that trait _______________.
7. A well-tested explanation that unifies a broad range of observations.
8. Serves no useful function in an organism but shows a link to a common ancestor.
9. Mutations do not always affect an organism's ______________—its physical, behavioral, and biochemical characteristics.
11. ___________________ may occur when a small group of individuals colonize a new habitat.
13. When individuals at one end of a bell-shaped curve of phenotype frequencies have higher fitness than individuals in the middle the result is...
15. Change in species over time.
17. The Galapagos finch species are an excellent example of....
19. The starting molecule for glycolysis is _________.
20. Because all members of a population can ________________, biologists often study their genes as a single group.
24. In ___________ populations, an allele can become more or less common simply by chance.