Horizon Natural Selection

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