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2. External fertilization - Wikipedia

   en.wikipedia.org/wiki/External_fertilization

   External fertilization is a mode of reproduction in which a male organism's sperm fertilizes a female organism's egg outside of the female's body. [1] It is contrasted with internal fertilization , in which sperm are introduced via insemination and then combine with an egg inside the body of a female organism.

3. Modes of reproduction - Wikipedia

   en.wikipedia.org/wiki/Modes_of_reproduction

   The biologist Thierry Lodé proposed (2001, 2012) five modes of reproduction based on the relationship between the zygote (fertilised egg) and the parents: [1] [2]. Ovuliparity: fertilisation is external, the oocytes being released into the environment and fertilised outside the body by the male. [1]

4. Fertilisation - Wikipedia

   en.wikipedia.org/wiki/Fertilisation

   This is an accepted version of this page This is the latest accepted revision, reviewed on 22 January 2025. Union of gametes of opposite sexes during the process of sexual reproduction to form a zygote This article is about fertilisation in animals and plants. For fertilisation in humans specifically, see Human fertilization. For soil improvement, see Fertilizer. "Conceive" redirects here. For ...

5. Animal embryonic development - Wikipedia

   en.wikipedia.org/wiki/Animal_embryonic_development

   Depending on the animal species, the process can occur within the body of the female in internal fertilization, or outside in the case of external fertilization. The fertilized egg cell is known as the zygote. [2] [5] To prevent more than one sperm fertilizing the egg , fast block and slow block to polyspermy are used. Fast block, the membrane ...

6. The Real Cost of Freezing Your Eggs (and How To Save for It)

   www.aol.com/news/real-cost-freezing-eggs-save...

   How Much It Costs To Freeze Your Eggs. ... Storage: $2,000 (presumes five years of storage with the first year free and $500 per year after) Since most women need two cycles, that brings the ...

7. Human fertilization - Wikipedia

   en.wikipedia.org/wiki/Human_fertilization

   Human fertilization is the union of an egg and sperm, occurring primarily in the ampulla of the fallopian tube. [1] The result of this union leads to the production of a fertilized egg called a zygote, initiating embryonic development. Scientists discovered the dynamics of human fertilization in the 19th century. [2]

8. How Much Does It Cost to Freeze Your Eggs? Plus, 4 Other ...

   www.aol.com/much-does-cost-freeze-eggs-160000909...

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9. Sperm motility - Wikipedia

   en.wikipedia.org/wiki/Sperm_motility

   Sperm motility describes the ability of sperm to move properly through the female reproductive tract (internal fertilization) or through water (external fertilization) to reach the egg. Sperm motility can also be thought of as the quality , which is a factor in successful conception ; sperm that do not "swim" properly will not reach the egg in ...