BIO 1130 Lecture 9: BIO 1130 Lecture 9 Chapter 3
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BIO 1130 Full Course Notes
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Increase in hemoglobin concentration (red blood cells): qinghai tibet plateau. Increased blood flow: natural selection keeps the individuals with the genetic traits that allow adaptation to high altitude. This means that individuals that have the mutation are at an advantage for survival and reproduction (production of offspring) These adaptations can sometimes define a species and, in certain circumstance, define a new species. On test must say that the population already had the adaptation but that the population with that adaptation was naturally selected. Descent with modification theory (theory of evolution) explains the resemblance between certain traits even if the functions are different. (homologous structure) Evolution of the horse: more realistic interpretation (phylogenetic tree, looked at the teeth of the horse very simple, the legs are very complex meaning it lived in the forest, over time horses become more complex. Nictitating membrane or third eyelid: appendix, goosbumps and hair. The hiccups : a heritage from fishes and amphibians.
