Natural Selection
Across
- 5. Any change in the DNA sequence of a cell
- 6. an organism that consumes all or part of the body of another—living or recently killed—organism, which is its prey
- 9. one that an organism develops as a result of experience
- 12. natural scientist who formulated a theory of evolution by natural selection
- 13. the biological mechanism by which organisms adjust to new environments or to changes in their current environment.
- 14. the change in frequency of an existing gene variant in the population due to random chance
- 16. the process of organisms adapting and changing
- 19. an inborn impulse or motivation to action typically performed in response to specific external stimuli
Down
- 1. a defense mechanism or tactic that organisms use to disguise their appearance, usually to blend in with their surroundings.
- 2. the identification by humans of desirable traits in plants and animals, and the steps taken to enhance and perpetuate those traits in future generations.
- 3. examines the behavior of humans and animals and investigates which behavior is innate and which skills are learned in the course of life
- 4. the transfer of genetic material from one population to another
- 7. the appearance of differences in the magnitude of response among individuals in the same population given the same dose of a compound.
- 8. the product of the reproductive processes of a person, animal, or plant
- 10. a process that results in changes in the genetic material of a population over time
- 11. a substance or object required by an organism for normal growth, maintenance, and reproduction
- 15. the ability to survive to reproductive age, find a mate, and produce offspring.
- 17. the similarity of one organism (the mimic) to another (the model) that enhances the mimic's fitness through its effect on the behavior of a third party, the operator
- 18. a way animals conserve energy to survive adverse weather conditions or lack of food
- 20. a specific characteristic of an individual