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15 Cards in this Set

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Charles Darwin
- 1809-1882
- *Origin of Species* Theory of Evolution (1859)
- Survival of the Fittest
- Natural Selection
DNA
- deoxyribonucleic acid
- genes, the building blocks for every process in the human body
chromosomes
- store the genes/DNA
- located in cell nucleus
genome
catalog of all human genes
dominant
a gene will exert its effect regardless of whether the other member of the gene pair is different
recessive
gene will only display effects if the gene in the pair is the same
polygenic inheritance
an organism's attributes are influenced by a large number of gene pairs
genotype
the genetic blueprint of an organism
phenotype
the organism's actual characteristics
Evolution via Natural Selection
Darwin's theory that some individuals are "selected" by the invironment as more fit, or better adapted, for their life circumstances. Survival of the Fittest
Claude Bernard
- 1813-1878
- the first to emphasize that every organism has both an external and internal environment
homeostasis
"equal state", a process that involves many mechanisms
negative feedback
changes that are produced by an action but which are then used to stop, or even reverse, that action
endotherms
organisms that maintain stable body temperatures, all mammals
ectotherms
variable internal temperature, not mammals