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