REPRODUCTION
HUMAN REPRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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there is a greater chance for genetic variation
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only one sperm is needed to fertilize the egg
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genes can pass directly from the mother to the embryo
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the chance for zygote survival is increased
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Detailed explanation-1: -Chances of fusion of gametes are more. The probability of successful fertilization is increased. The mates are selective. The chances of dehydration of gametes decreases.
Detailed explanation-2: -Internal fertilization protects the fertilized egg or embryo from predation and harsh environments, which results in higher survival rates than can occur with external fertilization.
Detailed explanation-3: -Explanation: The advantage of internal fertilization over external fertilization is that a large number of gametes are not required as internal fertilization provides a safe environment.
Detailed explanation-4: -When a sperm fertilizes an egg within the female, it is known as internal fertilization. The advantages of internal fertilization are that the fertilized egg is protected from predators and harsh environments, thus ending in higher chances of survival.
Detailed explanation-5: -Advantages of External Fertilization It results in increased genetic variations. It produces a larger number of offsprings. The gametes released can drift and therefore it is easy to find mates.