Question

how is egg fertilized in plants and animals differentiate?

Answer 1

The process of fertilization occurs in both plants and animals. There are, of course, differences in the details and mechanisms. On the other hand, some of the similarities are striking. For example, the moss plant has both swimming sperm cells and eggs. In the moss plant, fertilization occurs by the sperm swimming to the egg. Vertebrate animals also carry out reproduction by way of sperm and egg.

One of the differences between plants and animals in this regard is that plants are, for the most part, sedentary. The moss plant depends on rain or very wet conditions in order for the sperm to swim from the male parts of the plant to the egg in the female parts. In the case of animals, the male and female are mobile individuals that physically interact with one another in the process of mating.

Answer 2

The process of fertilization occurs in both plants and animals. There are, of course, differences in the details and mechanisms. On the other hand, some of the similarities are striking. For example, the moss plant has both swimming sperm cells and eggs. In the moss plant, fertilization occurs by the sperm swimming to the egg. Vertebrate animals also carry out reproduction by way of sperm and egg.
One of the differences between plants and animals in this regard is that plants are, for the most part, sedentary. The moss plant depends on rain or very wet conditions in order for the sperm to swim from the male parts of the plant to the egg in the female parts. In the case of animals, the male and female are mobile individuals that physically interact with one another in the process of mating.
Embryo Development

Many plants have a structure called the ovary that is the counterpart of that in animals. In flowering plants, there are male and female flowers. Once the pollen from the male flower has been transferred to the female flower, the pollen fertilizes the egg. Once fertilized, the egg begins to develop into an embryo in much the same way that an animal embryo develops.
Germination and Birth

Whereas a vertebrate animal begins its life through exiting the mother's womb—either as an egg that must further develop and hatch, or as a newborn individual — in plants the new plant is "born" by germinating from the seed. In plants and animals, part of the maturation occurs during the embryonic stage, and the remainder occurs after birth and germination, respectively.


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