Search Results for: extinction
The role of extinction in evolution
Colloquium Paper Ths paper was presented at a colloquium entled "Tempo and Mode in Evolution" organized by Walter... Read More
Mass extinction
Definition noun The extinction of one of more species in a relatively short period of geological time, usually as a... Read More
Extinction
Extinction 1. (Science: ecology) The death of an entire species. 2. (Science: psychology) The procedure of presenting the... Read More
Biodiversity
Biodiversity Lead Author: J. Emmett DuffyThis article has been reviewed and approved by the following Topic Editor: John... Read More
Population
Living organisms typically prefer to live, grow, and survive in groups. Except for some species that prefer solitude - both... Read More
Why Is The Mary River Turtle Endangered
The Mary River Turtle (Elusor macrurus) has been named recently as one of the species on the brink of extinction. That is... Read More
Biodiversity
The biological world or life on earth is a marvel that has amazed us since time immemorial. The rich natural diversity of... Read More
Beer-Lambert law
Definition noun The principal law in spectrometry in which it states that the absorbance at a given wavelength of light is... Read More
Homo sapiens sapiens
Homo sapiens What are homo sapiens? Homo sapiens is the species of all the highly developed primates on earth, a category... Read More
Interspecific competition
Interspecific Competition Definition In Biology, competition is defined as the process that occurs among species that have... Read More
Genetic diversity
Genetic Diversity Definition Each species is composed of individuals with their own set of genes. A gene is the inheritance... Read More
New Zealand’s Biodiversity
Written by: Maria Victoria GonzagaPeer-reviewed by: Cathy Buntting, Ph.D. and Andrea SoanesWhy is New... 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, and... Read More
Sexual selection
What is Sexual Selection? The definition of sexual selection is very interesting in biological terms. The sexual selection... Read More
Environment
Environment Definition What does environment mean? If you mean physical environment, then it is defined as the surrounding... Read More
Molar extinction coefficient
Definition noun (spectrophotometry) The measure of how strongly a substance absorbs light at a particular wavelength, and is... Read More
Population Growth and Survivorship
By: Maria Victoria GonzagaPreviously, we learned about biodiversity and endemism. Now, let's look at the... Read More
The Dinosaurs
Everyone has heard about the dinosaurs. No doubt one of the reasons why is because of their size, another being the fact... Read More
Threatened species
Definition noun Any of the species vulnerable to becoming endangered within all or much of its range in the near... Read More
Population Regulation in an Ecosystem
Darwin focused some of this work in regards to the population size of a species, and what factors may affect them. He... Read More
Critically endangered species
Definition noun Any species that has an extremely high risk of extinction in the immediate future (as categorized by the... Read More
New Zealand’s Unique Geographical History
Written by: Maria Victoria GonzagaPeer-reviewed by: Cathy Buntting, Ph.D. and Andrea SoanesNew Zealand is... Read More
Fragmentation
Fragmentation Definition What is fragmentation? In general, fragmentation refers to the state or the process of breaking... Read More
![Biology n., [baɪˈɑlədʒi] Definition: scientific study of life](https://www.biologyonline.com/wp-content/uploads/2021/12/biology-definition-and-branches-of-biology-300x168.jpg)
Vulnerable species
Definition noun Any species that is likely to become endangered within the foreseeable future Supplement A vulnerable... Read More
Rivet Hypothesis
Definition noun It is a theory that entails about the conditions of ecosystem wherein a significant loss of a certain... Read More
Zoogeography
Definition noun A branch of biology that is primarily concerned about the geological distribution of... Read More
Sphenodon guntheri
Definition The tuatara species of the genus Sphenodon that inhabits one small island of New Zealand, i.e. Brothers... Read More
Survival of the fittest
When we talk about evolutionary processes, the usage of the phrase "Survival of the fittest" has been very common in... Read More
Mammalian Ancestors
Humans are mammals, the most successful taxonomic class of organisms to colonize the Earth. The word mammal derives from 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