Biology
Across
- 3. factor where changes in a habitat affect the organism's survival
- 5. different looking species can have similar internal systems
- 6. force that causes a specific phenotype to be more advantageous
- 11. factor where differences between organisms of the same species
- 16. factor where there is a difference in genes passed on to new generations
- 17. the letters that represent a trait
- 18. factor species produces more offspring than can survive
- 20. varian in dna
- 21. factor where members of a species fight for same supplies
- 22. still present but no longer used (goosebumps)
- 24. one dominant and one recessive allele
- 25. the ability for organisms with more advantages to be able to reproduce more
Down
- 1. advantage that organism has that is developed overtime
- 2. tool to determine a common ancestor
- 4. have the same functions but arent from a common ancestor
- 7. the theory that organisms with more advantageous traits are more likely to survive
- 8. the visible trait that comes from the genotype
- 9. the genetic formation that contains genetic instructions for organisms
- 10. shows how the same species evolved over time and developed better traits
- 12. sections of dna that code for specific traits
- 13. different forms of the same gene
- 14. a characteristic of an organism
- 15. have different functions but come from a common ancestor
- 19. a way to visualize possible genotypes of the offspring
- 23. a change in a species over a long period of time