37 results found

Search Results for: darwin charles

Natural selection

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

Evolution

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

Darwin and Natural Selection

Reviewed by: Mary Anne Clark, Ph.D. In the 19th century, a man called Charles Darwin, a biologist from England,... Read More

Darwin Charles

An english biologist who is renowned for his work and theories in his book on the origin of species by means of natural... Read More

Examples of Natural Selection

Reviewed by: Mary Anne Clark, Ph.D. Darwin's Finches Darwin's finches are an excellent example of the way in... Read More

Adaptive Radiation

Reviewed by: Mary Anne Clark, Ph.D. When Charles Darwin was in the Galapagos Islands, one of the first things he... 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

Sympatric speciation

Speciation is a process of evolution through which two different existing populations evolve and a distinct species form. It... Read More

On Mate Selection Evolution: Are intelligent males more attractive?

A study published in Science on January 11 seems to be the first to lay empirical evidence that concur with Charles Darwin's... Read More

Divergent evolution

Divergent evolution definition Divergent evolution refers to the process by which interbreeding species diverged into two... 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

What is a species? Definition of species, different approaches

What is the definition of species? What does it take to be considered as a species? Ever since there has been an array of... Read More

Genetics and Evolution

Tutorials in Genetics and Evolution immerse on the molecular aspects and the works of nature that led to what every living... Read More

Pangenesis

Definition noun A hypothetical mechanism for heredity proposed by Charles Darwin in which it holds that gemmules are shed... Read More

Gemmule

Definition noun, plural: gemmules (botany) A small gemma; a bud produced by gemmation. (zoology) A mass of cell capable of... Read More

Species

Every living organism is unique when you observe its morphological, anatomical, molecular, genetic, biochemical, chemical,... Read More

Physiological adaptation

If we look over evolutionary history, we find that it’s neither the most genius and intelligent nor the strongest and the... Read More

Last universal ancestor

Definition noun The hypothetical primordial organism from which all other species of organisms on Earth... 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

Spot the match – wildlife photo-identification using information theory

Spot the match – wildlife photo-identification using information theory   Conrad W Speed,1,2 Mark G Meekan,2 and Corey... Read More

Genetics – Lesson Outline & Worksheets

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

Galapagos Islands

A group of islands in the Pacific off south America; owned by Ecuador; known for unusual animal life.A place made famous in... Read More

The Gene Pool and Population Genetics

Reviewed by: Mary Anne Clark, Ph.D. The previous tutorial is about adaptive radiation. Adaptive radiation is... Read More

Transmutation of species

Definition noun The first fully formed scientific theory of evolution by Jean Baptiste Lamarck in his 1809 book... Read More

Early Mammals on Earth

By the time the dinosaurs were extinct 65 million years ago, the world's landmass had split up into more or less the... Read More

Adaptation Tutorial

Adaptation, in biology and ecology, refers to the process or trait through which organisms or the populations in a habitat... Read More

Darwinism

a theory of organic evolution claiming that new species arise and are perpetuated by natural selection.The theory that was... Read More

Adaptation

Adaptation Definition In biology and ecology, adaptation refers to the process of adjusting in behavior, physiology, or... Read More

Taxonomy

Taxonomy Definition The term "taxonomy" was developed from two Greek words, "taxis," meaning arrangement, and "nomia,"... Read More

SENI Biometric Analysis on the extinct Scincidae species: Macroscincus coctei (underlined)

Brian L. Schnirel Leeway Corucia Research Center (LCRC) Courtesy: Polyphemos (2004)   Introduction: It has been... Read More

Fitness

Definition noun (1) (biology) A biological condition in which a competing variant is increasing in frequency relative to... Read More

Biology

Biology Definition Biology is the branch of science that primarily deals with the structure, function, growth, evolution,... Read More

Protoplasm

Definition noun plural: protoplasms pro·to·plasm, ˈprəʊtəˌplæzəm The fluid living content of the cell that... Read More

Fit

Definition adjective (biology) Adapted, i.e. in a way that an organism is able to live and reproduce offspring in an... Read More

Degenerate

Degenerate means to become worse or less of its kind or former state. In biology, it means an entity performs the same... Read More

Gene

A gene is the fundamental, physical, and functional unit of heredity. The genes make up the sequences of DNA (genotypes).... Read More

Organization

Organization Definition The meaning of the term "organization" is very simple. It means the state wherein things are... Read More