science

definition of reproduction

It is known as reproduction to that biological process through which a species can create new organisms belonging of course to the same. Reproduction is the common characteristic observed by almost all forms of life that are known so far: animals, humans, plants, among others, being the same plausible through two forms: sexual and asexual..

In asexual reproduction, a single organism will be responsible for originating other new individuals., which will be something like a traced copy of that organism from the genetic point of view. In this type of reproduction, another organism is formed through only paternal cells without any type of fertilization. A typical example of this class is that of amoebae, which reproduce through this modality.

Meanwhile and contrary from its base to the previous type of reproduction, the sexual one will require for its concretion of the intervention of two individuals or organisms that must be of different sexes. The descendants that are given as origin will be the result of the combination of both parents, that is, of the DNA or genetic information of each one, which is why that of the traced copy that we talked about in the previous situation will be lost. This type of reproduction is typical of complex organisms, such as the human species.

In the case of human reproduction, two individuals are involved, a man and a woman, and it consists of internal fertilization through the sexual organs of the two genders mentioned. However, it is not produced and voila, the offspring will appear, but on the contrary, success will depend on the coordinated action of male and female hormones, the reproductive system and the nervous system.

The testicles in the case of men and the ovaries in the case of women, are responsible for the production of sperm and eggs, which are ultimately responsible for reproduction per se, being the sperm that opportunely at the moment of the ovulatory period of the woman they will have the task of fertilizing it.

Once the fertilization of the ovum is completed, which will lead to the creation of an egg or zygote, a series of mitotic divisions will occur that will culminate in the development of the embryo. This will have three germ layers, ectoderm, endoderm and mesoderm which will give rise to the various organs of the body of that new individual.

The male reproductive system is made up of the following elements: prostate, penis, testicles, epididymis, vas deferens and seminal vesicles, while that of women is made up of the vagina, vulva, cervix, uterus, endometrium , the ovaries and the fallopian tubes.