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प्रश्न
Explain why, a human zygote is more likely to grow into an adult than a frog zygote.
उत्तर
In humans, fertilisation is internal. The zygote divides and forms the embryo which is implanted in the uterus. This embryo receives all the nutrients and care from the mother's body and develops into an adult.
In frogs, fertilisation is external and the zygote is formed outside the body. Thus, it forms a larva instead of developing directly into an adult.
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संबंधित प्रश्न
If a woman is using a copper-T, will it help in protecting her from sexually transmitted diseases?
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Where in the human body does an ovum get fertilised?
For how much time does menstruation last in human females (or women)?
Which one of the following best describes the function of the umbilical cord? It :
(a) feeds the embryo with digested substances.
(b) conveys nutrients and wastes to and from the embryo respectively
(c) removes waste matter from the embryo to the mother's blood.
(d) supplies oxygenated blood from the mother to the embryo.
Define the following:
Parthenogenesis
Differentiate
Urinogenital system and Urinary system.
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A zygote is formed by the fusion of a male gamete and a female gamete. The number of chromosomes in the zygote of a human is ______.
