BIOL 150B Chapter Notes - Chapter 1: Tettigoniidae, Spinal Cord, Structural Level

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Kermode bears): organism: a individual living thing, organ system: the circulatory system or neuron system, consists of several organs that cooperate a specific function. Brain + nerves: organ: made up by several different tissues, tissues: made up by a group of similar cell that performs a specific function, cells: a fundamental unit of life. 1. the heritability of life is based on dna. Dna: the chemical substance of genes, provides the blueprint of making protein: evolutionary theory. Charles darwin: on the origins of species by means of natural selection . Two main points: evolution: darwin suggested that species living today are all descendants of ancestral species. Captured both diversity of life & unity of life: natural selection: individuals with heritable traits best suited to the environment are more likely to survive and reproduce than are less well-suited individuals. A higher and higher proportion of individuals will have advantageous traits.

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