Maria de los Ángeles Gamba (B.S.)

(Licenciada en Ciencias) - AUTORA. Editora y divulgadora científica. Coordinadora editorial (papel y digital).

biology

What is coevolution? Definition and examples

In its most basic form, coevolution is defined as evolution in two or more species brought about by reciprocal selective effects between those species...

biology

What is the difference between somatic cells and gametes?

Sexual reproduction is one in which two sex cells, called gametes , unite through a process called fertilization, giving rise to a new cell...

biology

What is a chromatid?

Inside the cells is the information that determines the inheritance of the traits that the parents transmit to their descendants. This information is contained...

biology

Can acquired traits be passed on to offspring?

In 1809, the French naturalist Jean Baptiste de Lamarck proposed the law of inheritance of acquired traits. According to her, the traits that are...

History and culture

Timeline of the ancient Maya

The Mayans are one of the most important pre-Hispanic civilizations, that is, those that occupied Abya Yala (as the American continent was called) before...

geology

Boundaries or divergent edges of tectonic plates

The Earth's crust is the outermost solid layer of the planet . It is oceanic , if it forms the bottom of the oceans,...

History and culture

Facts about Francisco Pizarro

Francisco Pizarro was born in Trujillo, a city in Extremadura, in Spain. Together with his compatriots Diego Almagro and Hernando De Luque he undertook...

Psychology

Stages of psychosocial development according to Erikson

Erik Erikson (1903-1994) was a German psychoanalyst who proposed the theory of psychosocial development. After studying with the famous neurologist Sigmund Freud, he emigrated...

History and culture

James Hargreaves and Spinning Spinner Jenny

The Jenny spinning spinner was a machine invented in England in the mid-1760s by the Lancashire weaver James Hargreaves. This machine is considered an...

Anatomy

What is the cingulate gyrus?

Also called the cingulate gyrus, cingulate gyrus, or callosum-marginal gyrus, the cingulate gyrus is a fold located on the inner face of the cerebral...

History and culture

Maryland Vital Records

The Maryland State Government, through the Division of Vital Records (DVR) attached to the Maryland Department of Health (MDH), issues certified copies of birth,...

Animals and Nature

Firefly Life Cycle

Fireflies are insects in the order Coleoptera and the family Lampyridae . Only in the American continent they are represented by at least 1134...

Science

what is borax

Borax, whose chemical name is sodium tetraborate decahydrate, is a white crystalline solid with the chemical formula Na 2 B 4 O 7 ∙10H...

Animals and Nature

How to determine the sex of a shark

Sharks are aquatic animals that present sexual dimorphism, that is, external characteristics observable at some stage of life that differentiate males from females. Some...

For students and parents

Pickled egg experiment and dental health

Dental enamel is the outermost layer of the tooth. It is a bright, accessible and visible layer. It is made up of 94% small...

biology

What is a gymnosperm?

Gymnosperm plants make up a group of vascular plants , that is, with internal structures that conduct substances such as water and mineral salts,...

Linguistics

Difference Between Lexical and Grammatical Meaning

Words are one of the sign systems that human beings use to communicate. They are made up of the signifier and the signified. The...

Animals and Nature

Fun facts about the “Giganotosaurus”

The Giganotosaurus (whose name means "giant southern reptile") were dinosaurs that inhabited the Earth about 98 million years ago, during the late Cretaceous, in...

Animals and Nature

Fun Facts About Opossums: Biology, Ecology, and Taxonomy

Opossums are marsupials , that is, mammals whose females have a pouch or folds surrounding the teats to which the developing embryos attach once...

biology

What is a cladogram? Definition and examples

A cladogram is a branched diagram or dendrogram that reflects the evolutionary relationships between sister groups and that is built according to criteria from...

Humanities

What is the narrative arc in literature?

The narrative arc is the progression of events that make up a story and give it structure. Mckee (1995) defines it as "...a selection...

social Sciences

Naturalistic Observation: Definition, Advantages, and Limitations

Naturalistic observation is a research method used in psychology and behavioral and social sciences, among others, that consists of observing the behavior of individuals...

Humanities

What is civic engagement? Definition, dimensions and types

Civic engagement has been defined by various authors, who coincide in pointing out the relationship between this concept and the way in which people,...

Linguistics

What is a transition paragraph?

A transition paragraph, also called a link, is one that is used to move from one aspect to another of the same topic within...

biology

Questions for Creating Biology Science Fair Projects

Science fairs are an educational strategy that facilitates the exchange of experiences. They consist of programmed activities in which students pose problems, develop research...

Architecture

US Supreme Court Building Architecture

The United States Supreme Court building, located at One First Street, Washington DC, began construction in October 1932 and was delivered in 1935. The...

Humanities

What are grammatical errors?

In the process of acquiring a language, the error has been described as an interference or an indicator of imperfection in linguistic knowledge, so...

Science

Specific volume: what it means and how to calculate it

Volume ( V ) is the space that a material occupies. It is a general or extensive property , because it depends on the...

Humanities

Bonny Lee Bakley, the murdered wife of actor Robert Blake

Bonnie Lee Bakley was an aspiring actress who was murdered in 2001. Her death sparked a media scandal because she was the wife of...

Humanities

How to use the IRAC method of analysis and legal reasoning

The IRAC method is a formula that was established to teach the task of the lawyer, which essentially consists of knowing the rules in...

Humanities

Containment: America’s Plan to Stop Communism

Containment was a policy formulated by career Foreign Service officer George F. Kennan, pictured. It consisted of a United States strategy to fight during...

Literature

Vocabulary of “The Odyssey”

In ancient Greece , a rhapsode was an itinerant reciter who sang poems accompanied by a lyre. The best known rhapsode was Homer ,...

Math

How big are millions, billions, and trillions?

The numeral system of the natural numbers is decimal, because the groupings of the units are made in groups of ten. Thus, the numbers...

Humanities

How the Virginia Plan Influenced the US Constitution

The Virginia Plan was a proposal to establish a two-branch legislature in the newly founded United States. Although the Virginia Plan was not adopted...

Humanities

Enhance a book club with study questions and discussion

A book club is a creative strategy that promotes reading and writing. It is made up of a group of people who meet periodically...

Science

Penicillium fungus and penicillin

There are several species of fungi known as molds that live in nutrient-rich media. A common mold is Penicillium , which is associated with...

Humanities

The Missouri Compromise and Its Impact

The Missouri Compromise was the first of the major attempts by the United States Congress during the 19th century aimed at easing regional tensions...

Humanities

Study Guide for “A Very Old Man with Enormous Wings”

"A Very Old Man with Enormous Wings" is a 1968 short story by Colombian writer Gabriel García Márquez. This story, like many others by...

Humanities

How Sociology Explains Deviant Behavior

Deviant behavior is any behavior that is contrary to the dominant norms of society. There are many different theories that explain how behavior comes...

Visual arts

Pamela Colman Smith: the artist behind the tarot

Pamela Colman Smith was commissioned to illustrate the Rider-Waite tarot cards, often also called Rider-Waite-Smith, the most famous deck in North America. However, this...

Humanities

The symbols of the Greek god Apollo

In Greek mythology, Apollo was the son of the Titaness Leto and the god Zeus. The image of him is the ideal of beauty,...

Humanities

Profile of Amber Frey, the lover of the murderer Scott Peterson

The American Amber Dawn Frey became known in January 2003, when she was related to Scott Peterson, a 29-year-old man suspected of murdering his...

Linguistics

What is optimality theory and how is it used?

Just as human beings have various rules that seek to make their lives easier, there are rules that guide the way in which the...

Chemistry

Wedge and line projection in chemistry

Carbon is an element that, through covalent bonds, forms organic compounds. A bond is the force that gives stability to the atoms joined together;...

biology

What are glial cells?

Neurons are the cells responsible for receiving internal or external stimuli, processing them and transforming them into electrical signals called nerve impulses. Then, these...

biology

photosynthetic organisms

Living beings need energy to carry out their vital functions, that is, those processes that keep them alive. Energy, in this physiological sense, is...

biology

What are biological polymers?

The main substances that make up the cells of living things are known as biomolecules . These contain mainly carbon atoms, an element capable...

Science

Data on oxygen, a fundamental element for life

Oxygen is a chemical element whose most common form is in the gaseous state. As a gas, oxygen has no odor, color, or taste....

Animals and Nature

The basic groups of reptiles

Reptiles evolved from an ancestral amphibian species about 250 million years ago. Among other traits, what made it possible for their ancestors to colonize...

biology

What are asters?

Eukaryotic cells, that is, those that make up protists , fungi, plants and animals, present a scaffolding similar to a skeleton, the so-called cytoskeleton...

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