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Found 1 from your keywords: subject="Zoologi"
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The Sex-Ratio in Alternational Hermaphrodites, with Special Reference to The …
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Martin D. Burkenroad

In a population in which the sexual nature of the individuals is not subject to change, the sex-ratio of a given brood as determinable in practice may be different at different times if there is a differential rate of maturation for the two sexes, or a differential death rate. Excluding from present consideration the periods in the life of the population at which these differentials may operate…

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594.1 Mar t