A hypothesis is the most likely answer or solution to a research problem. They are the propositions or assumptions made by the researcher to try to explain a certain fact, based on prior knowledge, which serves to conduct the investigation.…
Autotrophic organisms are beings that can produce their own food using light (photosynthesis) or chemical energy (chemosynthesis), which is why they are known as producer beings. Heterotrophs cannot synthesize their own food and feed on other organisms, such as plants…
Evolution of man or human evolution is the name of a series of biological changes through which our species has passed to become what we now call a human being, known scientifically as Homo sapiens. This evolutionary process originated between…
There are two major classifications of paper measures: European format: series A, B and C of the ISO 216 standard. american format: letter, legal and tabloid size. The European format is the most used in almost the entire world, while…
For a long time, the nuclear family (father, mother and children) was considered the traditional family model. However, the economic, political and socio-cultural changes that have taken place over time have reconfigured this structure, to such an extent that it…
He verse It is the basic unit of the poem, formed by a set of words subject to a metric and a certain rhythm. Example: I can never forget Marti, Jose Simple verses, XIV. The stanza It is a metric…
The movement of rotation is when a body, such as the planet Earth, rotates on its own axis, which remains fixed. While the movement of translation refers to the movement that the Earth makes to the revolve in its orbit…
Technology is any solution, development or knowledge that facilitates life in society. And in the last half century, technological advances have been so important that they have even changed our way of living, communicating and relating. Technology has brought great…
Mitosis is the sequence of events by which a eukaryotic cell (parent cell) produces two daughter cells with the same genetic information as the original cell. Mitosis is the stage of the cell cycle that follows interphase, where the cell…
A mixture is characterized because there are two or more substances or elements that are united, but not chemically combined, and because it is possible to separate them. A homogeneous mixture is one in which its components are mixed in…