Living beings go through various transformations from the moment of their birth until death. All of these processes are known as the life cycle. Significant changes occurred during this period. transmit from one generation to another. This article develops everything related to this topic.
Concept and meaning of the life cycle in biology
First of all, we must know what the term ‘Life cycle‘, which is defined as the period in which it exists and during which the human being, animal or a plant is useful. This concept is present in all specieswhich through sexual or asexual reproduction give rise to another identical organism.
From the point of view of biology, the cycle focuses on the reproductive process. Includes every moment of cell development. Is he circular movement that occurs during a given period of time. It’s divided in 4 stages which are birth, development, reproduction and death. This cycle applies to all living things. The time that each organism has is individual. It can be short or long depending on the individual and environmental conditions.
So, we can say that the life or biological cycle is the circle that an organism draws from its birth until the moment it creates a new individual (reproduction). It is not a single processRather, it is a continuum that passes from one generation to another, repeating itself.
What is the life cycle of animals?
The species of this group of living beings are characterized by having a very complete life cycle. This is because they can be born as an already constituted offspring, for example, puppies, or what happens in the case of birds that begin their activity in the outside world in egg shape. These creatures, after fertilization, they are transforming until it is time to be born. Once outside they begin to grow, a process known as development.
This growth phase is different for each species. In her, animals grow up to his full height. Some take longer than others to reach their adult or reproductive lives. By achieving your sexual maturityl, the reproduction stage starts secure a new generation. Which is an important fact because it helps to preserve species, especially those that are in danger of extinction.
The documents on this topic state that this period lasts for a period of time that is own for each species. In the end, it arrives old age where they begin to get sick due to age, although not everyone suffers from them. Finally, death that it is natural, or due to some pathology. It is important to note that the life span of these varies. It can go from thirty (30) days, which is what happens with certain insects, up to fifty (50) years on average, as is the case with turtles.
What is the life cycle of plants?
We know that all living beings go through a set of processes throughout their existence, the vegetal kingdom don’t escape this. When talking about reproduction, it can be seen as a complete system that will give the final product a plant. Like animals, plant species reproduce sexually, although many of them do so asexually. It is important to explain both processes in order to understand the Product life cyclewhich in this case will be a plant, since this process will begin with procreation.
We will start by talking about the sexual reproduction. There is, within the highly diverse flora, a family group that has reproductive organs. This allows you to differentiate into both genders. The plant that belongs to the male sex will have in its structure the stamenwhich is pollen, which, if we compare it to animals or humans, would be the equivalent of sperm.
Regarding the female gender group, they will have pistils. Which are formed by the stigma in its upper portion and the ovary containing the female reproductive cells is located at the base. When both gametes unite, a new product is created that would be the seedwhich will begin to live its own cycle.
In relation to the asexual reproduction, It occurs from stems, cuttings, among other portions of the mother plant, in it the presence of sexual gametes is not needed to give way to a new plant life, which will be identical to its parent. This is what happens, for example, with ferns, since they are plants that they have no roots.
After reproduction, the life cycle of the product continues, if it is the case of the seed, this will germinate and the growth process will begin. while if it is the cutting a new plant begins to develop. Regardless of sexual or asexual reproduction, the flora needs the sun to grow. Finally, there is death that puts an end to the existence of the plant and with it its Life Cycle.
What is the diplontic life cycle?
It is a dominant phase that consists of the union of two gametes haploid, giving rise to a diploid zygote, which is a diplonte individual, for example, humans and animals. It is important to mention that only the ovules and spermatozoa are the only haploid cells present in these living beings.
Once these organisms are grown and ready for reproduction, the gametes come together in the fertilization process. From this point the journey begins again, forming a new diplonte entity.
There is also the organism haplodiplont in which both phases occur and are long and can give haploid and diplont entities as a product.
What is the life cycle function?
To understand this, it is important to know that all the entities that are part of the planet have an individual activity or responsibility to develop. This way, there is a balance between living beings and the environment. Regarding biology, the life cycle analysis lets you know its function. As living organisms, including animals, plants, or microorganisms, enter the world, they develop, and ultimately depart from it.
The most important thing is that it makes it possible to understand the contribution that these living beings make during their passage through the planet. As, for example, in the case of humans, build a family nucleus in order to ensure the existence of future generations. Of course, its function is not only based on the concept of being born and reproducing, it goes further.
Life cycle analysis allows understand the processes that occur in each period of existence, such is the case of the mutations that occur in the reproduction phase and mark significant changes that are transmitted to the family.
This concept varies in the case of the company, where the function includes the possibility of understanding the movement of the market system, amount of sales of a project, or performance of the software. In the same way, evaluate each moment of the product’s life cycle, to know if its usefulness has ended and must be replaced by other goods.
This brings benefits to the company, since it guides it on the implementation of a new article or software update, thus improving the product life cycle while increasing the assets of the company.
In the case of a Project, it includes evaluating each stage from the planning, execution, monitoring and controll, which is reflected in documents to carry out the life cycle analysis in an easier way. This can be carried out using software.
At the first moment, all the required factors are evaluated in order to know if the project is feasible or not. Then it goes to action where what is stated in the documents is put into practice. In each phase, control must be made to check achievements.
What are the stages of the life cycle?
Living entities throughout their evolution go through different stages, which are described below.
- Birth: is the beginning of the story for a new individual. It occurs when a creature enters the world, either through childbirth in the case of animals or human beings, or at the moment a seed or a cutting is planted, giving way to a floral life.
- Growth: at this stage the living animal or vegetable being acquires a larger size and undergoes morphological and physiological changes.
- Reproduction: Once it has reached its maximum development, the biological entity begins its conception process to procreate individuals of the same species and thus maintain the Cycle of life.
- Death: With the passage of time, living organisms become old, and progressively weaken until the moment of death.