3. DIFFERENTIATE BETWEEN a. Internal and external fertilization. b. Viviparous and oviparous animals. c. Sexual and asexual reproduction. 4. ANSWER IN DETAIL a. Explain the process of development of an embryo in humans with the help of a diagram. b. Explain the modes of asexual reproduction in Hydra and in Amoeba.
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External fertilization is a mode ofreproduction in which a male organism's sperm fertilizes a female organism's egg outside of the female's body. 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.
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Oviparous and viviparous are such two methods. The main difference betweenoviparous and viviparous animals is thatoviparous animals do not undergo any embryonic development inside the mother whereas viviparous animals develop into a young animal inside the mother. This meansoviparous animals lay eggs
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Asexual reproduction involves one parent and produces offspring that are genetically identical to each other and to the parent.Sexual reproduction involves two parents and produces offspring that are genetically unique.
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Embryonic development, also embryogenesis, is theprocess by which the embryo forms and develops. ...Embryonic development starts with the fertilization of the egg cell (ovum) by a sperm cell, (spermatozoon). Once fertilized, the ovum is referred to as a zygote, a single diploid cell.
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Since new individuals develop from the buds inhydra, this type of asexual reproduction is calledbudding. Another method ofasexual reproduction is observed in the microscopic organism,amoeba. ... This type of asexual reproductionin which an animal reproduces by dividing into two individuals is called binary fission.
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Oviparous and viviparous are such two methods. The main difference betweenoviparous and viviparous animals is thatoviparous animals do not undergo any embryonic development inside the mother whereas viviparous animals develop into a young animal inside the mother. This meansoviparous animals lay eggs
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Asexual reproduction involves one parent and produces offspring that are genetically identical to each other and to the parent.Sexual reproduction involves two parents and produces offspring that are genetically unique.
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Embryonic development, also embryogenesis, is theprocess by which the embryo forms and develops. ...Embryonic development starts with the fertilization of the egg cell (ovum) by a sperm cell, (spermatozoon). Once fertilized, the ovum is referred to as a zygote, a single diploid cell.
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Since new individuals develop from the buds inhydra, this type of asexual reproduction is calledbudding. Another method ofasexual reproduction is observed in the microscopic organism,amoeba. ... This type of asexual reproductionin which an animal reproduces by dividing into two individuals is called binary fission.
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