BIOL 1000 Lecture Notes - Lecture 2: Red Algae, Cell Theory, Eukaryote
23 Nov 2017
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Two unifying concepts of biology: theory of e(cid:448)olutio(cid:374) a(cid:374)d (cid:272)ell theory. Have to explain the pattern by referring to the mechanism. Pattern-characteristics of a population change over time is that individual with certain traits produce more offspring than other. Mechanism-all cells come from pre-existing cells (meiosis, mitosis: theory of evolution and cell theory are linked, implying the same concept that all species come from a common ancestor. It suggests that all existing species come from pre-existing species. Darwin describes unity (common ancestor) and diversity of life (differences exist-from natural selection) We have hindered ability to detect all life on earth. Luca is the last universal common ancestor speciation happened afterwards. Which of the following are most closely related? (according to the figure) The question is asking which ones shares common ancestor. Red algae and fungi eg. comparing skeletal structures. Certain traits allow are reproduce and passed on to the next offspring. *change in time in one or more inherited trait.
