Horizon Natural Selection
Across
- 7. The name of Darwin's ship.
- 9. Any difference between individuals of the same species.
- 10. A relationship between two species in which one species benefits and the other species is harmed.
- 12. The type of tree that is the Queen of the Trees.
- 13. When a species produces far more offspring than can possibly survive.
- 17. A relationship between two different species in which one species benefits and the other species doesn't care.
- 19. The process where individuals that are better adapted are more likely to survive and reproduce.
Down
- 1. A relationship between two different species in which both species benefit.
- 2. A biologist who came up with the theory of natural selection after visiting the Galapagos islands.
- 3. A trait that increases and organism's ability to survive.
- 4. The insect that bits people, sucks their blood and leaves and itchy bump.
- 5. The preserved remains of an organism that lived in the past, usually found in rock.
- 6. The birds who beaks are different from one Galapagos island to the next depending on what food they eat.
- 8. Two different species that have a close, long term relationship that benefits at least one of the species.
- 11. The type of bird that lived in the trunk of the Queen of the trees.
- 14. When members of the same species must compete with each other for resources.
- 15. The bird that eats bugs off of the backs of grazing animals in Africa.
- 16. The fish that swim along side sharks to collect bits of food that fall out of the sharks mouth.
- 18. The black lizards that swim in the ocean in search of algae.
- 20. A group of similar organisms that can mate with each other and produce fertile offspring.