REPRODUCTION
HUMAN REPRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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internal fertilization and internal development of the fetus
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internal fertilization and external development of the fetus
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external fertilization and external development of the fetus
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external fertilization and internal development of the fetus
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Detailed explanation-1: -In mammals, fertilization takes place internally in the protected environment of the ampulla of the oviduct, as opposed to external fertilization where sperm and egg meet outside the parent’s body (e.g., as in fish, reptiles, amphibians and invertebrates).
Detailed explanation-2: -Internal Fertilization This occurs in most bony fish, many reptiles, some cartilaginous fish, most amphibians, two mammals, and all birds.
Detailed explanation-3: -Do most mammals have internal or external development? Explain. Mammals have internal development, in which the baby grows in the uterus (womb).
Detailed explanation-4: -Internal fertilization has the advantage of protecting the fertilized egg from dehydration on land. In many instances, the embryo is isolated within the female, which limits predation on the young. Internal fertilization also increases the likelihood of fertilization by a specific male.