Unit 5 Vocabulary

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Across
  1. 3. The influence of gravity on plant growth
  2. 4. Adaptation A behavior an organism exhibits that increases it's chance of survival.
  3. 9. Stimulus A change of outside forces that results in an organism's response.
  4. 10. The tissue in a plant that transmits food from leaves to other parts of the plant.
  5. 11. A period of inactivity and a lowered metabolism in animals during the winter.
  6. 12. Key A set of descriptions that one can use to identify an organism.
  7. 15. The movement of plants and plant roots in response to water.
  8. 16. Adaptation A physical trait of an organism that increases it's chance of survival.
  9. 17. Changes of traits in organisms over time.
  10. 20. Any difference between organisms of the same species.
Down
  1. 1. Stimulus A stimulus or change within the body of an organism.
  2. 2. The process of maintaining a state of equilibrium, internally and when responding to external stimulus.
  3. 5. The tissue of a plant that transports water from the roots to all parts of the plant.
  4. 6. An organism's reaction to an internal or external stimulus.
  5. 7. When a species no longer exists.
  6. 8. The growth of plants in response to light.
  7. 13. Breeding The breeding of plants and animals by humans for offspring with desirable traits.
  8. 14. A trait that suits and organism to an environment.
  9. 18. Selection The process in which organisms with inheritable traits that increase their chance of survival reproduce more than the organisms without the trait, affecting the population.
  10. 19. A perceptible change, internally or externally, that results in an organism’s response.