NATS 1610 Study Guide - Final Guide: Covalent Bond, Hydrogen Bond, Chemical Polarity
13 Dec 2013
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Document Summary
Characteristics of living things take in energy and materials from the environment reproduce and grow. Animals (animalia) fungi (fungi) taxonomy of humans (where do we belong) domain: eukarya order: primates kingdom: animalia family: hominidae phylum: vertebrata genus: homo class: mammalia species: sapiens. Modern species are descendants of ancestral species. Evolution occurred by the process of natural selection - the descent through modification, over long periods of time. Criteria for evolution through natural selection individual variation exists within a species - some variation is inherited. Some people live longer and have more offspring than others. Some characteristics make them better suited to their environment. Change occurs as the traits of the surviving people (those who reproduce) become more common in the population less successful traits become less common. Modes of speciation (what causes new species to evolve) Populations may be in overlapping geographical area. Behavioural changes: non-random mating - reduces gene flow. Preserved remnants and impressions of past organisms.
