Biology: Evolution
Across
- 2. species that disrupt the ecosystem
- 7. fossil that shows traits common to inherited and developed group
- 11. pieces of once living organism
- 12. when population don't evolve, genetic variation remain constant
- 14. uncontrolled plant growth due to increase in plant nutrients
- 15. early developmental stage of a multicellular organism
Down
- 1. organs that have no significant function
- 3. gradual change in species over time
- 4. fossil used to identify geological period
- 5. accepting more to suit the environment and reproduce:behavior, characteristics, etc.
- 6. reproductive success
- 8. environment determine the selection of trait of species over time
- 9. favor trait that attract mates to reproduce
- 10. structures that have different features but similar function
- 13. many types of species on Earth