What is Endocrine System? What is Endocrine system?An endocrine system is a group of ductless glands where secretory cells diffuse hormones directly into the bloodstream. The glands of the endocrine system are called endocrine glands and are defined by the lack of ducts for the passage of their secretions. The Read more…
What are aquatic animals? Aquatic animals are those animals that live all the time or much of their life in water, whether sweet or salty. They can breathe oxygen dissolved in water (through gills or skin) or they can breathe it from the air (through lungs). The number of species that inhabit Read more…
How do fish reproduce? Fish are marine vertebrate animals, abundant and diverse in the different oceans, lakes, and rivers of our planet. Many of them are part of the diet of humanity, while others can become pets. These are eukaryotic animal species. They breathe through gills and are endowed with fins instead Read more…
What is biology about? History, Importance, Biology Topics What is biology about? Biology (whose name comes from the Greek: bíos, “life” and logía, “science, knowledge”) is one of the Natural Sciences, and its object of study includes the different forms and dynamics of life: its origin, the evolution, and the processes of living Read more…
What is binary fission? Types, Examples What is binary fission? Bipartition or binary fission is a mechanism of asexual reproduction of unicellular living beings, typical of prokaryotes, that is, of bacteria and archaea. It consists of the duplication of the individual’s cellular DNA, as a previous step to dividing the cytoplasm Read more…
What is budding? plants, animals, and Examples What is budding? In biology, it is known as budding (from Latin genius, “twin”) to a form of asexual reproduction that consists of an unequal division of the body of the parent. It requires the growth of a physical prominence that can then separate and Read more…
What are mushrooms? Fungi are living beings belonging to the fungi kingdom: molds, yeasts, and mushrooms. This set of living beings can be considered an intermediate kingdom between plants and animals, from which it was separated more than a million years ago, since its members lead immobile and insensitive lives like Read more…
What is a eukaryotic cell? Eukaryotic cells (from the Greek word Eukaryota, the union of EU – “true” and karyon “nut, nucleus”) are called all cells in whose cytoplasm a precisely defined nucleus can be found that contains most of their genetic material (DNA ). In this, they differ from Read more…
Animal cells and plant cells have several differences and similarities. For example, animal cells do not have cell walls or chloroplasts, while plant cells do. Animal cells are mostly round and irregular shapes, while plant cells have a fixed rectangular shape. Animal and plant cells are eukaryotic cells, so they Read more…
What is the environment? The environment is the space in which the life of organisms takes place and which allows their interaction. It is made up of living beings ( biotic factors ), non-life elements ( abiotic factors ), and artificial elements created by man. When speaking of biotic factors, Read more…