mention any three advantages and disadvantages of external and internal fertilization??
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Advantages of External Fertilization
it results in increased genetic variations.
It produces a larger number of offsprings.
The gametes released can drift and therefore it is easy to find mates.
Disadvantages of External Fertilization
A large quantity of gametes is wasted and left unfertilized.
Chances of fertilization are diminished by environmental hazards and Predators
Eggs and sperms, essentially, may not come in contact
Dessication of zygote or gametes
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