38 results found

Search Results for: natural classification

Taxonomy

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

Natural classification

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

Natural

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

Classification

Definition noun, plural: classifications (1) (biology) The systematic grouping of living things based on characteristics,... Read More

Protist

Protist Definition What is a protist? All protists are eukaryotes, i.e. organisms with a nucleus. However, they are... 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

System

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

Evolution

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

Arthropod

Arthropod Definition What is an arthropod? An arthropod is an invertebrate living organism characterized by the presence of... Read More

Algae

Algae are photosynthetic organisms that possess photosynthetic pigments such as chlorophyll. However, they lack true roots,... Read More

Primitive Animals

Incorrect taxonomic classifications deemed organisms to be either animals or plants, in the Plantae or Animalia kingdoms... Read More

Organism

An organism refers to a living thing that has an organized structure, can react to stimuli, reproduce, grow, adapt, and... Read More

Living things

Living Things Definition A living things pertains to any organism or a life form that possesses or shows the... Read More

Biology

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

Antigen

Antigen Definition What is an antigen? A simple definition is that an antigen refers to any substance that triggers an... Read More

Aves

Aves Definition What are birds classified as? Birds constitute the class Aves of the kingdom Animalia. How to define Aves?... Read More

Polymorphism

Polymorphism Definition The occurrence of two or more different forms or morphs in the population of a species is referred... Read More

Branches of biology

Branches of Biology Biology, the scientific study of life, includes several relevant branches. Below is a list of major... Read More

Natural history

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

Bee Species Outnumber Mammals And Birds Combined

Scientists have discovered that there are more bee species than previously thought. In the first global accounting of... Read More

Pantherinae

Definition noun A taxonomic subfamily belonging to the family Felidae, and includes the genera Panthera and... Read More

Mutagen

Mutagen Definition What is a mutagen? A mutagen is a substance or agent that causes DNA impairment that results in the... Read More

The Homo Species

Over the long term, it looked like Homo would supersede any ‘similar model’ of animals due to their unique tool using... Read More

Ecosystem diversity

Ecosystem Diversity Definition What is ecosystem diversity? Ecosystem diversity deals with the study of different... Read More

Biodiversity

Biodiversity Lead Author: J. Emmett DuffyThis article has been reviewed and approved by the following Topic Editor: John... Read More

Mineral

Definition noun plural: minerals min·er·al, ˈmɪn.əɹ.əl Any of the various naturally-occurring abiogenic substances,... Read More

Parenchyma

Parenchyma Definition What does parenchyma mean? Let's define the word "parenchyma". Most of the functional tissues in... Read More

Gamete

Definition of Gamete What is a gamete? A gamete is the mature reproductive or sex cell that contains a haploid number of... Read More

Inorganic compound

Definition noun plural: inorganic compounds A chemical compound lacking both carbon-carbon (C-C) and carbon-hydrogen... Read More

Haemophilus parahaemolyticus

Definition Noun A gram-negative commensal bacterium involved as a causative agent in some human diseases including... Read More

Sugar

Definition noun plural: sugars sug·ar, ˈʃʊɡɚ (1) Any monosaccharide or disaccharide, used especially by organisms... Read More

Chemical taxonomy

Chemical taxonomy (Science: procedure) An approach to the classification of organisms based on the distribution of natural... Read More

Banyan

Definition noun, plural: banyans (botany) A tree of the same genus as the common fig, and called the Indian fig tree (Ficus... Read More

Eubacteria

Eubacteria are prokaryotic microorganisms consisting of a single cell lacking a nucleus and containing DNA is a single... Read More

Kelp

Definition noun, plural: kelps A brown seaweed of the order Laminariales Supplement The kelp is a brown seaweed... Read More

Alligator

Definition noun, plural: alligators A large crocodilian species of the subfamily Alligatorinae Supplement Alligatoridae is a... Read More

Gender

Gender 1. Kind; sort. One gender of herbs. 2. Sex, male or female. 3. a classification of nouns, primarily according to sex;... Read More

Neisseria sicca

Definition Noun A gram-negative diplococcus oxidase positive commensal bacterium involved as a normal flora of human oral... Read More