BIOA01H3 Lecture Notes - Lecture 4: Falsifiability, Neanderthal, Cyanobacteria

• School: UTSC
• Department: Biological Sciences
• Course: BIOA01H3
• Professor: Robin Marushia

Document Summary

Sept 10 lec 4 required reading 17 evidence for evolution 2: predictions and evidence. 2. 2 lineages change over time & some diverge (speciate) (cid:1006). (cid:1007) natural selection occurs and leads to adaptation (cid:894)darwin"s(cid:895) Note: this does not mean evolution is directional and complex organisms arise from less complex precursors. Less complex for(cid:373)s may persist for lo(cid:374)g periods (cid:894)the(cid:455) do(cid:374)(cid:859)t disappear a(cid:374)d the(cid:455)(cid:859)re (cid:374)ot i(cid:374)ferior(cid:895) a(cid:374)d i(cid:374)di(cid:448)idual li(cid:374)eages (cid:373)a(cid:455) decrease i(cid:374) complexity over time. We know this is a reasonable process because of fossil records and dating records. A fossil is remains or evidence of an organism from a past geologic age preserved long after death like frozen, dried or lithified (turned to stone) and tissue, impression, or trace fossils (ex. Fossils are a very specialized set of conditions are required for preservation in this way. All fossils have been discovered on earth are called fossil records and information derived from these fossils.