explain internal fertilisation and internal development
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The process of the internal fertilization takes place inside the female body, and the offspring develops there only, while in external fertilization this process happens outside the body that is in the external aquatic environment. Internal fertilization is of three types – Oviparity; Viviparity; Ovoviviparity.
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Internal Fertilization External Fertilization
What is means
Fusion of gametes within the body of the female Union of the gametes in an external environment(Water bodies)
Quantity of gametes released
Lesser is released and deposited inside the body of the female Multiple gametes(both male and female) released into the external environment
Gametes involved
Only male gametes are discharged into the female genital tract Both female and male gametes are discharged into the external surroundings
Site of further development
Inside the female body Outside the body
Types
Viviparity
Oviparity
Ovoviviparity
No types as such, external environment
Explanation:
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