front 1 morphological homologies | back 1 similarities based on shared ancestry (homologies) and they are structural (morphological) |
front 2 homologous | back 2 traits that are similar because of descent from a common ancestor |
front 3 analogous | back 3 traits that are similar because of convergent evolution |
front 4 amniotic egg | back 4 homologous trait shared by reptiles, birds and mammals |
front 5 molecular clock | back 5 time for which two species have been evolutionary separated and the amount of genetic divergence between them |
front 6 histone genes | back 6 encode the proteins around which DNA is wrapped to form chromatin |
front 7 pax6 | back 7 encodes a transcription factor that controls eye development in wide range of species |
front 8 hemoglobin | back 8 binds oxygen to red blood cells |
front 9 vestigial structures | back 9 traits that were once useful and functional but are no longer and so tend to be reduced in size or function |
front 10 appendix | back 10 short appendage or blind sac of the gastrointestinal tract |
front 11 pseudogene | back 11 gene that was once functional but is no longer |
front 12 fossils | back 12 remains of once living organisms |
front 13 nematodes | back 13 tiny worms that have no hard skeletons and are not well represented in the fossil record |
front 14 foraminifera | back 14 skeleton forming diatoms |
front 15 amoebas | back 15 unicellular organisms w/o hard parts |
front 16 trace fossils | back 16 fossils of trails |
front 17 isotope carbon-14 or C14 | back 17 isotope of carbon |
front 18 radiometric dating | back 18 process of using radioactive decay to date wood and bone |
front 19 half-life | back 19 the time it takes for an amount of a substance to reach half its original amount |
front 20 invasive species | back 20 non-native species that become established in new ecosystems |
front 21 biogeography | back 21 study of the distribution of species on the earth |
front 22 malaria | back 22 single-celled eukaryote and is transmitted by the bite of female anopheles mosquitos |
front 23 greenhouse gas | back 23 gas in earth's atmosphere that helps to warm the planet |