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प्रश्न
Aquatic animals in which fertilisation occurs in water are said to be
पर्याय
viviparous without fertilisation
oviparous with external fertilisation
viviparous with internal fertilisation
oviparous with internal fertilisation
उत्तर
oviparous with external fertilisation
Explanation -
The aquatic animals in which fertilisation occurs in water are oviparous with external fertilisation. They lay eggs and release sperms outside body in the water for fertilisation to take place. The young one top is formed outside the body in water from the zygote formed inside eggs.
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संबंधित प्रश्न
Draw a diagram of the microscopic structure of human sperm. Label the following parts in it and write their functions
(a) Acrosome
(b) Nucleus
(c) Middle piece
The fusion of the male and the female gametes is called __________.
Define spermiogenesis.
Mammalian egg is ____________.
Draw a labelled diagram of a Graafian Follicle.
Sertoli cells are found in ______.
Which of the following contains a fluid filled cavity called antrum?
Preparation of sperm before penetration of ovum is ______.
In oogenesis haploid egg is fertilised by sperm at which stage?
What does figure represent?
