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Homonyms, homophones and homographs: differences and examples
The homonymous words are words that are spelled or pronounced the same, although their meanings are different. For example: bolsa, can refer to a type of bag or to the economic institution. The homophone words are a type of homonymous…
Types of variables in research and examples
A variable is something that can have different values, such as weight, height, or eye color, as opposed to a constant that has only one value, such as the speed of light. The types of variables are determined by the…
Metals and nonmetals: what they are, characteristics, examples (and periodic table)
Chemical elements are classified into metals and nonmetals. Metals are substances that conduct electricity, can form sheets or wires, and have luster. Non-metals are all those substances that do not conduct electricity, are fragile to handling or are gases. The…
Cation and anion: differences and characteristics (with examples)
A cation is an ion that has a positive charge and an anion is an ion with a negative charge. Both cations and anions are types of ions. An ion is an atom or group of atoms that have an…
Standard and rule: differences, characteristics and examples
A norm is a collective consensus, created to regulate the behavior of individuals in a society. A rule is a formal guideline of a social or legal nature, the non-compliance with which is morally or legally penalized. Rule Rule Definition…
Parts of the animal cell and their functions
The animal cell is the building block of all animal structures. It is a type of eukaryotic cell, characterized by a nucleus in which the genetic material in the form of deoxyribonucleic acid or DNA is enclosed. The animal cell…