Question
Differentiate between oviparous and viviparous animals with an example of each.
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Oviparous animals
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Viviparous animals
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These are the animals which lay fertilised or unfertilised eggs.
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These are the animals which give birth to young ones.
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Chances of survival are less as offspring of oviparous animals are at a great risk as they are threatened by their predators and unfavourable environmental conditions, e.g. frogs, birds.
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Chances of survival are high as offspring of viviparous animals are protected by the parent organism from predators/ enemies and unfavourable climate, e.g. Human beings/ mammals.
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S. No.
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Pattern of inheritance
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Monohybrid $F_1$ phenotypic expression
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i.
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Co-dominance
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a
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ii.
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b
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The progeny resembled only one of the parents
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iii.
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Incomplete dominance
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c
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