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biology terms mod. 2

Pathogen An organism that causes disease.
Saprophyte An organism that feeds on dead matter.
Parasite An organism that feeds on a living host.
Aerobic organism An organism that requires oxygen.
Anaerobic organism An organism that does not require oxygen.
Steady state A state in which members of a population die as quickly as new members are born.
Exponential growth Population that is unhindered because of the abundance of resources for an ever-increasing population.
Logistic growth Population growth that is controlled by limited resources.
Conjugation A temporary union of two organisms for the purpose of DNA transfer.
Plasmid A small circular section of extra DNA that confers one or more traits of a bacterium and can be reproduced seperately from the main bacterial genetic code.
Transformation The transfer of a DNA segment from a nonfunctional donor cell to that of a functional recipient cell.
Transduction The process in which infection by a virus results in DNA being transferred from one bacterium to another.
Strains organisms from the same species that have markedly different traits.
Created by: Abasnail



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