ANIMAL BEHAVIOR
SOCIAL BEHAVIOR
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A large number of eggs and sperm are produced.
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Both eggs and sperm are able to move spontaneously.
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Growth and development occurs within the female’s body.
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Fertilized eggs grow and develop inside a shell.
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Detailed explanation-1: -In viviparity the young develop within the female, receiving nourishment from the mother’s blood through a placenta. The offspring develops in the female and is born alive. This occurs in most mammals, some cartilaginous fish, and a few reptiles.
Detailed explanation-2: -The mammalian female reproductive system likewise contains two main divisions: the vagina and uterus, which act as the receptacle for the sperm, and the ovaries, which produce the female’s ova. All of these parts are always internal.
Detailed explanation-3: -Sexual Reproduction in Animals Most animals reproduce sexually, though in a variety of different ways. Sexual reproduction in animals involves the union of a haploid sperm and a haploid egg to form a diploid zygote, which shares its DNA with both the parent cells.
Detailed explanation-4: -Female reproductive system produces oocytes, female gametes. In mammals, if fertilization happens, the embryo is implanted in the female reproductive system ducts, where posterior development occurs until birth. Physiology of the female reproductive system is different depending on if there is fertilization or not.
Detailed explanation-5: -The oviduct or Fallopian tube is the anatomical region where every new life begins in mammalian species. After a long journey, the spermatozoa meet the oocyte in the specific site of the oviduct named ampulla, and fertilization takes place.