Across
- 3. genetic ____ is when the genetics of a population change (it evolves) due to random events
- 7. the bacteria species we used in our antibiotics experiment
- 8. this type of dating a fossil relies on how old one fossil layer is compared to another layer
- 11. the earliest cells probably looked similar to the group we call ___ alive today.
- 13. we measured the ___ of clearing in our antibiotics experiment
- 14. these bones can tell us if predator/prey, brain size and more
- 17. In Natural Selection the individuals in a population that are more ______ to the current living conditions will survive and reproduce.
- 19. a scientist who studies the history of life on Earth through the fossil record.
- 21. a virus needs to invade a ____ cell in order to replicate
- 23. the _____ bones of the fossil named Selam told the paleontologist that she walked upright
- 24. is an enzyme that allows mammals to digest milk, in most species the production of the enzyme turns off after youth.
- 26. in artificial selection/breeding it is ____ who are selecting which traits get passed on not nature
- 29. when new individuals enter the population and bring new genes into the gene pool
- 31. this way of dating a fossil uses unstable isotopes
- 32. in natural selection it is the ___ that determines which individuals pass on their trais
- 33. this is when the DNA of an organism changes and if it is passed to future generations it can cause the populations genetics to change - evolve
- 34. the first organisms to make antibiotics were not humans but were a type of fungus we call ____
Down
- 1. an individual can not evolve, evolution happens to an entire _____ over time
- 2. when traits are selected not for survival but by mate competition or selection it is ____ selection
- 3. when we see males and females of a species very different that is called sexual ______
- 4. the ____ vaccine has multiple strains and is updated each year in attempt reflect the current evolved strains
- 5. a majority of antibiotics are used in the US on ______.
- 6. this helps your immune system be able to recognize a pathogen and respond quicker
- 9. a change in the allele frequency (the gene pool) in a population
- 10. this term applies to organs/traits that were used by ancestors but have no use in the modern organism revealing clues of evolution
- 12. At the grocery store lab work has revealed antibiotic resistant strains of bacteria on all the raw ___ products
- 15. humans who had a random mutation for lactase persistence AND lived in cultures with dairy animals were ____ and the trait became more common in the next generations
- 16. in DNA are random and in some cases they will benefit the individual
- 18. this is a form of evidence of evolution that is preserved in the rocks
- 20. are produced naturally by microorganisms and kill or inhibit the growth of other microorganisms, mainly bacteria.
- 22. these pathogens cause illnesses like Covid - but can not be treated with antibiotics
- 25. when viruses ____ then a new vaccine would be needed to prepare the immune system
- 27. we are not descended from other modern apes, but we do share a common ___
- 28. natural ____ is when certain traits/genes are favored for survival in an environment so the population evolves to be more adapted.
- 30. this type of fossil would be found lots of places for a relatively short geological time so we can use them as a reference in relative dating