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21 Cards in this Set
- Front
- Back
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An organism that cannot survive without oxygen
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Obligate aerobe
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An organism that cannot survive in the presence of oxygen
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Obligate anaerobe
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An animal that eats both plants and animals
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Omnivore
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A cancer-causing gene; usually contributes to malignancy by abnormally enhancing the amount or activity of a growth factor made by the cell
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Oncogene
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In prokaryotic DNA, a sequence of nucleotides near the start of an operon to which an active repressor can attach, the binding of repressor prevents RNA polymerase from attaching to the promoter and transcribing the genes of the operon
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Operator
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A protective flap on each side of a bony fish's head that covers a chamber housing the gills
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Operculum
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A unit of genetic regulation common in prokaryotes; a cluster of genes with related functions, along this the promoter and operator that control their transcription
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Operon
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Often seen in small bodied species, the pattern of reproducing when young and producing many offspring
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Opportunistic life history
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In classification, the taxonomic category above family
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Order
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A structure with a specialized function within a cell
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Organelle
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The study of carbon compounds
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Organic chemistry
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A chemical compund containing the element carbon and usually synthesized by cells
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Organic compound
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An individual living thing, such as a bacterium, fungus, protist, plant, or animal
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Organism
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The study of the evolutionary adaptations that enable individual organisms to meet the challenges posed by their abiotic environments
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Organismal ecology
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The control of or the gain or loss of water and dissolved solutes in an organism
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Osmoregulation
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The passive transport of water across a selectively permeable membrane
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Osmosis
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Member of the vertebrate class of bony fishes including trout and goldfish
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Osteichthyan
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In animals, the female gonad, which produces egg cells and reproductive hormones, or in flowering plants the basal portion of a carpel in which the egg-containing ovules develop
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Ovary
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A reproductive structure in a seed plant, containing the female gametophyte and the developing egg, develops into a seed
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Ovule
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The loss of electrons from a substance involved in a redox reaction; always accompanies reduction
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Oxidation
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The layer of O3 in the upper atmosphere that protects life on earth from the harmful ultraviolet rays in sunlight
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Ozone layer
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