AP Biology Final Exam

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Across
  1. 2. the powerhouse of the cell
  2. 3. A population can change over time, resulting in _______________, if individuals with a higher fitness survive and reproduce better than others
  3. 5. The movement of water across a semipermeable membrane
  4. 7. Type of reaction where electrons are gained
  5. 8. When 2 haploid cells join together to make a diploid cell in sexual reproduction
  6. 9. When an enzyme is exposed to unfavorable conditions and breaksdown
  7. 11. Outer layer of a plant cell
  8. 12. Type of reaction where an electron is lost
  9. 13. A change in the DNA
  10. 14. When two organisms have body parts that are made of the same structure, but have a different function. Example: the ulna in a human arm and the ulna in a bat wing
  11. 15. Animals have a higher _________ if they survive and reproduce better than others
Down
  1. 1. This occurs when a heterozygote displays both alleles
  2. 4. An organelle that contains digestive enzymes and helps break down material within the cell
  3. 6. When this type of allele is present, it will always show through over the other allele
  4. 10. When organisms have different structures that do the same thing. Example: Butterfly wings and bird wings
  5. 11. An interaction between 2 organisms in which one is benefitting and the other is neither helped nor harmed