Across
- 5. is the differance in the physical traits of an individual from those of other individuals in the group to witch it belongs.
- 7. is a group of organisms so similar to one another that they can reproduce and have a fertile offspring.
- 9. in this process humans make use of the genetic variation in plants and animals by acting as the selective agent.
- 11. is a feature that allows an organism to better survive in its invironment.
- 14. is the ability of a trait to be passed down from one generation to the next.
- 15. he argued that the laying down of soil or the creation of canyons by rivers cutting through rock were not the result of large-scale events
Down
- 1. selection is a mechanism by which individuals that have inherited beneficial adaptations produce more offspring on average than do other individuals.
- 2. structures are features that are similar in structures but appear in different organisms and have different functions.
- 3. the study of the distribution of organisms around the wourld.
- 4. is a measure of ability to survive and produce more offspring. relative to other members of the population in a given environment.
- 6. this theory states that the geologic processes that shape the earth are uniform through time
- 8. is the process of biological change by which disendants come to differ from there anccestors
- 10. states that natural disasters such as floods in volcanic eruptions has happend ofton during earth past history.
- 12. are traces of organisms that existed in the past.
- 13. is all the individuals of a spieces that live in an area.