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प्रश्न
Why do gametes produced in large numbers in organisms exhibit external fertilisation?
उत्तर
Organisms exhibiting external fertilisation release a number of gametes into the surrounding medium (water) in order to enhance the chances of syngamy because there are few’ chances of fusion between male and female gametes.
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संबंधित प्रश्न
Why is a whiptail lizard referred to as parthenogenetic?
Offspring formed due to sexual reproduction have better chances of survival. Why? Is this statement always true?
Define external fertilization
Syngamy can occur outside the body of the organism in ______.
Meroblastic cleavage is division ______.
Parthenogenesis occurs in ______
Zygote develop a thick wall that is resistant to dessication and damage is present in ______.
External fertilization is shown by:
Receptors for sperm binding in mammals are present on ______.
The number of taxa exhibiting asexual reproduction is drastically reduced in higher plants (angiosperms) and higher animals (vertebrates) as compared with lower groups of plants and animals. Analyse the possible reasons for this situation.
