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18 Cards in this Set

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Apical growth

Hyphae grow outward by growth at tips

Chytridiomycosis

Disease of amphibians caused by parasitic Chytrids

Paraphyletic

More than one common ancestor

Glomeromycetes

Increase plant root surface area. Live in soil. Mutualistic with plants.

Mycorrhize

Decomposers

Break down nonliving organic material

Limiting Factors

Factors in the environment limited in availability but necessary for survival.

Plasmogamy

Fusion of hyphae between two genetically different individuals.

Habituation

Lack of response to unimportant stimuli

Imprint Learning

Occurs during a critical period during early development. Animals learn to identify caregivers and suitable mates.

Classical Conditioning

Mental association between unrelated phenomena

Operant Conditioning

Linking voluntary behavior with favorable outcome

Sex Ratio

Proportions of males vs. females in the population

Proportion Reproducing

Actual proportion of males or females contributing to population growth

Age Structure

Relative numbers of individuals in age groups

Generation Time

Average time between an organism's own borth and the birth of its offspring

Demography

Study of processes that change a population's size and density through time

Fecundity

Potential reproductive capacity of an individual or population

Life History

Lifetime pattern of growth, maturation, and reproduction in a population or species