MEDICAL PHYSIOLOGY

PHYSIOLOGY

REPRODUCTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is an advantage of internal fertilization and development over external fertilization and development?
A
there is a greater chance for genetic variation
B
only one sperm is needed to fertilize the egg
C
genes can pass directly from the mother to the embryo
D
the chance for zygote survival is increased
Explanation: 

Detailed explanation-1: -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. Also, there is a lesser chance of desiccation of gametes.

Detailed explanation-2: -Internal fertilization occurs when the sperm fertilizes the egg inside the female; there are three methods: oviparity, viviparity, and viviparity. External fertilization is a type of reproduction in which the sperm of a male creature fertilizes the egg of a female organism outside the female’s body.

Detailed explanation-3: -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. More items

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