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Difference between External fertilization and internal fertilaization |
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Answer» \tInternal FertilizationExternal FertilizationWhat is meansFusion of gametes within the body of the femaleUnion of the gametes in an external environment(Water bodies)Quantity of gametes releasedLesser is released and deposited inside the body of the femaleMultiple gametes(both male and female) released into the external environmentGametes involvedOnly male gametes are discharged into the female genital tractBoth female and male gametes are discharged into the external surroundingsSite of further developmentInside the female bodyOutside the bodyTypesViviparityOviparityOvoviviparityNo types as such, external environment\t Listed below are some significant differences between internal and external fertilizationInternal FertilizationExternal FertilizationWhat is meansFusion of gametes within the body of the femaleUnion of the gametes in an external environment(Water bodies)Quantity of gametes releasedLesser is released and deposited inside the body of the femaleMultiple gametes(both male and female) released into the external environmentGametes involvedOnly male gametes are discharged into the female genital tractBoth female and male gametes are discharged into the external surroundingsSite of further developmentInside the female bodyOutside the bodyTypesViviparityOviparityOvoviviparityNo types as such, external environmentMeritsHigh survival chances as nourished by parentSuccessful fertilization rate is highChances of success of survival in harsh conditions are highOffsprings produced are manyFinding a mate requires less energyCompetition between parents and their offsprings is lessDemeritsFinding a mate requires much energyMost of the contribution is from the female counterpartFew offsprings producedAs they get preyed upon easily and lack of parental care results in lesser survival chancesMost of the offsprings go unfertilized, failing to survive until attaining maturitySurvival restricted to moist and wet environment onlyExamplesReptiles, Birds, Mammals, Tracheophytes, PteridophytesAlgae, Fish, Amphibians Internal fertilization\xa0is the process when the syngamy (union of male and female gamete) occurs inside the female body after insemination using copulation. In contrast,\xa0External fertilization\xa0is the syngamy outside the female body, that is\xa0in the\xa0outer environment especially in water bodies. |
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