598 results found

Search Results for: natural

Natural selection

Natural Selection Definition What is natural selection in biology? Natural selection is defined as a process in nature... Read More

Natural

natural 1. Fixed or determined by nature; pertaining to the constitution of a thing; belonging to native character;... Read More

Encyclopedia of Common Natural Ingredients Used in Food, Drugs, and Cosmetics

Encyclopedia of Common Natural Ingredients Used in Food, Drugs, and Cosmetics  ... Read More

Natural killer T cell

Definition noun, plural: natural killer T cells A T cell capable of destroying infected cells and infective particles upon... Read More

A Look Into Natural Selection and its Mechanisms

Charles Darwin is credited with outlining the fundamentals of evolution. He was a smart and eager pupil and protégé,... Read More

Discovering Dinosaurs: in the American Museum of Natural History by M. Norell

Discovering Dinosaurs: in the American Museum of Natural History   ... Read More

Geomorphology and Natural Hazards (Binghamton Symposia in Geomorphology International Series)

Geomorphology and Natural Hazards (Binghamton Symposia in Geomorphology International Series)   ... Read More

Natural passive immunity

Definition noun A passive immunity acquired by the fetus or newborn from the mother via the placental transfer of antibodies... Read More

Natural science

Definition noun The scientific study of phenomena or laws of the physical world. Supplement Natural science includes... Read More

Supernatural

supernatural being beyond, or exceeding, the power or laws of nature; miraculous. Synonym: Preternatural. Supernatural,... Read More

Natural antibody

natural antibody --> normal antibody antibody demonstrable in the serum or plasma of various persons or animals not known to... Read More

Naturalist

naturalist 1. One versed in natural science; a student of natural history, especially. Of the natural history of animals. 2.... Read More

Biology: A Guide to the Natural World by D. Krogh

Biology: A Guide to the Natural World      ... Read More

Natural immunity

natural immunity --> innate immunity This includes local barriers to infection such as skin, stomach acid, mucous, the... Read More

Natural history

natural history A former branch of knowledge embracing the study, description, and classification of natural objects (as... Read More

Natural active immunity

Definition noun An active immunity acquired by experiencing and having recovered from a disease. Supplement Active immunity... Read More

Allopatric speciation

We can define speciation as a process by which the novel genetically independent group of organisms are formed through the... Read More

Genetic drift

Genetic Drift Definition What is genetic drift in simple terms? The simple definition of genetic drift ( also referred to... Read More

Evolution

Reviewed by: Mary Anne Clark, PhD Evolution Definition Evolution (evo‧lu‧tion, ˈɛvəluːʃ(ə)n) is... Read More

Natural classification

natural classification (Science: zoology) classification based on inferences concerning the phylogenetic relationships of... Read More

Achaia or Studies of the Cosmogony and Natural History of the Hebrew Scriptures

Achaia or Studies of the Cosmogony and Natural History of the Hebrew Scriptures   ... Read More

Natural environment

Definition noun All living and non-living things that occur naturally on a particular region. Supplement A natural... Read More

Natural focus of infection

natural focus of infection An ecosystem in which an infectious agent normally persists in nature; e.g., yellow fever virus... Read More

Natural mutation

natural mutation --> spontaneous mutation A mutation which occurs by itself without first being affected by a mutagen, for... Read More

Natural resource

Definition noun, plural: natural resources Any of the materials derived from or part of the environment. Supplement On the... Read More

Natural reservoir

Definition noun A reservoir host harboring the pathogen but shows no ill effects and serves as a source of... Read More

Genetics – Lesson Outline & Worksheets

  Topics Modules Quizzes/Worksheets Description Introduction to Genetics Genetics - Definition:... Read More

Carbon

Carbon is one of the chemical elements found in nature. A chemical element refers to the pure substance of one type of atom.... Read More

System

A system pertains to interdependent or interrelated objects comprising and functioning as a whole. In biology, it may refer... Read More

Predation

In ecology, predation is a mechanism of population control. Thus, when the number of predators is scarce the number of... Read More

Organic compound

Definition noun plural: organic compounds A compound that, in general, contains carbon covalently bound to other atoms,... Read More

The Last Human: A Guide to Twenty-Two Species of Extinct Humans

The Last Human: A Guide to Twenty-Two Species of Extinct Humans     ... Read More

Biosphere

What is biosphere? The biosphere is that part of the Earth where living things thrive and live. It is the portion of the... Read More

Aquatic Chemistry by W. Stumm & J.J. Morgan

Aquatic Chemistry      AUTHORS:  ... Read More

Native

native 1. One who, or that which, is born in a place or country referred to; a denizen by birth; an animal, a fruit, or... Read More

Death by Black Hole: And Other Cosmic Quandaries

 Death by Black Hole: And Other Cosmic Quandaries      ... Read More

Population Growth and Survivorship

By: Maria Victoria Gonzaga Previously, we learned about biodiversity and endemism. Now, let's look at the... Read More