Across
- 1. in biology, a change in an organism, over time, that better enables it to
- 5. structure, as opposed to gradual evolutionary change
- 6. something that pollutes, esp. a waste substance that makes air, water, or land
- 7. an animal being hunted, caught, and eaten by another animal
- 8. a condition that causes harm to the health of a person, animal, or plant;
- 10. or unhealthy; contaminant.
- 11. leave fewer or no offspring
- 12. money or things that are available for a particular use
- 13. a sudden, apparently abnormal change or alteration in a genetically
- 16. to their environment survive and are able to reproduce, while those that are
- 17. and multiply
Down
- 2. sickness
- 3. a way of hiding something by covering or coloring it so that it looks like its
- 4. to have young or offspring
- 6. an animal that hunts other animals for food
- 9. a variety
- 14. to fill with more inhabitants than available resources can sustain
- 15. selection a natural process of evolution in which the organisms that are best