Bio181FinalExamGuide2

Bio181FinalExamGuide2 - c. structure and dynamics of...

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c. structure and dynamics of community: 1. loss of energy in transfer between trophic levels – the higher you go on the food chain, the more loss in energy 2. assimilation - the conversion of nutrient into the fluid or solid substance of the body, by the processes of digestion and absorption. 3. biomagnification. - is the increase in concentration of an element or compound 4. Theory of Evolution/Genetic Basis of Evolution. a. Charles Darwin 1. evidence for evolution 2. mechanism of natural selection - mechanism of evolutionary change - environment selects those organisms best able to cope 3. differential survival : - features that impart a competitive advantage - more likely to survive - more likely to leave offspring capable of reproduction 4. adaptation – a feature that increases the fitness of the organism in a particular environment. b. Sexually reproducing species (generates random genetic mutations, provides for novel combinations of genetic information) 1. gene - fundamental unit of inheritance -a sequence of nucleotides in DNA molecule - the position of the gene on the chromosome in its locus - the unit of hereditary information - a segment of a DNA molecule
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This note was uploaded on 04/21/2008 for the course BIO 181 taught by Professor Milton during the Spring '08 term at N.C. State.

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Bio181FinalExamGuide2 - c. structure and dynamics of...

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