Define external fertilization. Mention its disadvantages.
External fertilization is the method wherein the fusion of male and woman gamete takes region out of doors the woman frame in an outside medium, typically water. For example, fish, frog, starfish etc. go through outside fertilization. External fertilization has sure disadvantages. In outside fertilization, eggs have fewer probabilities of fertilization. This can cause the wastage of a big range of the eggs all through this method. Further, there's a lack of right parental care to the offspring, which leads to a low price of survival withinside the progress.
