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Name the type of fertilization where placenta formation does not occur.

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Name the type of fertilization where placenta formation does not occur.

(a) Ovoviviparous

(b) Oviparous

(c) Viviparous

(d) Segmentation

The question was posed to me by my school teacher while I was bunking the class.

My doubt stems from Embryonic Development in portion Human Physiology of Life Sciences

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Correct answer is (a) Ovoviviparous

The best I can explain: Ovoviviparous is the condition where fertilization is internal but there is no placenta formation. Example: dog and fishes.

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