Across
- 2. a specific characteristic of an individual
- 4. the change in activity of an organism in response to a stimulus
- 5. the whole number of organisms in a region
- 8. The lack of interbreeding or between organisms of the same species
- 10. the combination of all the genes present in a reproducing population or species
- 11. the presence of differences in sequences of genes between individual organisms of a species
- 12. the study of how the human body works
- 13. a group of organisms that can reproduce with one another in nature and produce fertile offspring.
- 15. the observable characteristics in an organism that results from the expression of genes
- 16. the process through which populations of living organisms adapt and change
- 17. how a new kind of plant or animal species is created
Down
- 1. the act of changing something or your behavior to make it suitable for a new situation
- 3. the inability of a species to breed successfully with related species due to barriers
- 6. an organism's ability to pass its genetic material to its offspring
- 7. the biological study of the form and organisation of living things
- 9. an interaction between organisms in which both require a resource that is in limited supply
- 14. arises from fitness differences associated with nonrandom success in the competition for access to gametes for fertilization