Across
- 4. A protein made in response to a specific antigen that can attach to the antigen and cause it to be useless
- 8. Overly strong reaction of the immune system to a foreign substance
- 10. Structures that have a different structural make up but have the same function. EX: bird's wing and butterfly's wing
- 12. A pattern of evolution in which species that were once similar to an ancestral species become increasingly distinct
- 15. Natural selection that favors average individuals in a population
- 17. Structures that are the same but have different functions in different species. EX: whale's fin and the human arm
- 19. Substance prepared from dead or weakened pathogens, or mRNA, then introduced into a body to produce immunity
- 21. Long lasting immunity that results when the body makes its own antibodies in response to a specific antigen
- 22. Immunity that results when antibodies produced in one animal are introduced into another's body; does not last as long as active immunity
- 23. Disease such as cancer, diabetes, or asthma, that is not spread from one person to another
- 24. Process in which a liquid is heated to a temperature that kills most bacteria
- 25. Theory that suggests life began in a pond or ocean as a result of the combination of chemicals from the atmosphere and some form of energy (lightning) to make amino acids (the building blocks of proteins)
Down
- 1. Disease-carrying organism, such as a rat, mosquito, or fly that spreads infectious diseases
- 2. A pattern of evolution in which distantly related organisms evolve similar traits, occurs when unrelated species occupy similar environments, because they face similar environmental pressures they develop similar adaptations
- 3. Theory that was proposed by Charles Darwin as an explanation for how change happens in a population over time
- 5. Occurs when natural selection favors ONE extreme variation in a trait
- 6. Extra structure/body part that is NOT needed by the organism EX: human appendix
- 7. Any inherited structure, behavior, or internal process that enables an organism to respond to their environment and produce offspring
- 9. Disease caused by a virus, bacterium, fungus, or protist that is spread from an infected organism or the environment to another organism
- 11. Infectious disease such as chlamydia, AIDS, or genital herpes , that is passed from one person to another during sexual contact
- 13. A very small particle, containing DNA or RNA surrounded by a protein. It attaches to living cells, hijacking their organelles to make more viruses, often causing illness.
- 14. Substance that causes an allergic reaction
- 16. Individuals with either extreme of a trait are favored over average individuals
- 18. Theory that proposes eukaryotic cells evolved through a symbiotic relationship between ancient prokaryotes
- 20. A protein ID tag on the outside of cells, often causing the production of antibodies