Advertisements
Advertisements
Question
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.
Solution
Both angiosperms and vertebrates have a more complex structural organisation. They have evolved very efficient mechanism of sexual reproduction. Since asexual reproduction does not create new genetic pools in the offspring and consequently hampers their adaptability to external conditions, these groups have resorted to reproduction by the sexual method.
APPEARS IN
RELATED QUESTIONS
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
Mention external fertilization disadvantages.
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:
Why do gametes produced in large numbers in organisms exhibit external fertilisation?
