Biology

3. any environmental or physical pressure that elicits a response from an organism
4. Evolutionary process that fits an organism to its environment
7. interaction between organisms where both require the same resources
9. when there are not enough resources in an environment for organisms
12. measure of how well peoples genes account for differences in traits
13. A theory that all organisms came from the same place and evolved to suit their environments
15. a gene that is shown as a phenotype, or physical trait
17. branch of biology relating to the function of organs and organ systems
18. successive stage of natural organism
19. creator of the evolution theory
20. difference in DNA between organisms or populations

1. specific arrangement of continuing objects
2. average contribution to the gene pool
5. process where organisms adapt to their environments
6. made up of dna strands
8. Change of activity in an organism to stimulus
10. the study of the size shape and structure of plants and animals in an environment
11. process that uses lab equipment to alter the DNA of organisms
14. something that occurs when a DNA strand is changed in a way to alter the message of a gene
16. when one organism is dominating the food tree in it's given environment