211 results found

Search Results for: diversity

Genetic diversity

Genetic Diversity Definition Each species is composed of individuals with their own set of genes. A gene is the inheritance... Read More

Ecosystem diversity

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

Diversity

Definition noun, plural: diversities (biology) The degree of variation of living things present in a particular... Read More

Biodiversity

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

Antibody diversity

Antibody diversity The phenomenon of immense variability characteristic of antibodies, which enables the immune system to... Read More

Genetic variability

Genetic Variability Definition Genetic variability refers to the tendency of individual genetic characteristics in a... Read More

Northern Africa and biodiversity

Northern Africa and biodiversity Content Partner: United Nations Environment Programme (other articles) Article Topics:... Read More

Angiosperm

Angiosperms Definition What is an angiosperm? An angiosperm is a plant that produces flowers. The angiosperms, also... Read More

Tree

“The biological diversity is plenty if you look around yourself a little closely; with an eye for life!” … People... Read More

Sister chromatids

Sister Chromatids Definition Sister chromatids are defined as the two identical copies of a single replicated chromosome... Read More

Community (biology)

Community, in biology, refers to the assemblage of interacting organisms (either of the same or different species)... Read More

Plankton

Plankton is a diverse group of typically microscopic, aquatic organisms suspended in the water column and rely on water... Read More

Symbiosis

Symbiosis Definition What is symbiosis? Symbiosis can be defined as any kind of relationship or interaction between two... Read More

Reproduction

Reproduction Definition Reproduction is a biological phenomenon of producing offspring/s. i.e. more of its kind. Depending... Read More

Selective Breeding

Reviewed by: Mary Anne Clark, PhDThousands of years before Darwin proposed evolution by natural selection and... Read More

Ecological Research: Measuring & Analysis

By: Maria Victoria GonzagaPreviously in this lesson, we learned that high biodiversity is essential to a healthy... Read More

Herbivore

Herbivore Definition A herbivore is the primary consumer of the food chain that usually occupies the second trophic level... Read More

New Zealand’s Biodiversity

Written by: Maria Victoria GonzagaPeer-reviewed by: Cathy Buntting, Ph.D. and Andrea SoanesWhy is New... Read More

Arthropod

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

Botany

Botany is a highly diverse subject that encompasses several aspects of plants. When the question pops up, “what is a... Read More

Protist

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

Substrate

Substrate Definition What is a "substrate"? The underlying substances or layers are termed as substrate. The definitions of... Read More

Progeny

Progeny Definition Progeny means an unmodified descendant from the material, such as a cell from a cell or an organism from... Read More

Parthenogenesis

To reproduce, by definition, means to produce new offspring. The process is referred to as reproduction, which is one of the... Read More

Cell division

Cell division is a biological process by which a parent cell duplicates its cell contents and divides to give rise to two or... Read More

Phylum

Just like it is easy to identify and sort anything in the supermarkets when placed in the right section with proper display... Read More

Chromatids

Chromatid Definition Chromatids are found inside our cells. Chromatids are condensed chromosomes distinguishable during... Read More

Meiosis

What is Meiosis? A simple definition of meiosis would be is this: meiosis is the process of cell division that results in... Read More

Asexual reproduction

Asexual Reproduction Definition What is asexual reproduction? Asexual reproduction is a type of reproduction that does not... Read More

Independent Assortment

Independent Assortment Definition Independent assortment refers to the alleles or genes that sort into the newly formed... 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

Gene pool

Definition noun, plural: gene pools (population genetics) The total number of genes of every individual in an interbreeding... Read More

Homologous chromosome

A homologous chromosome pertains to one of a pair of chromosomes with the same gene sequence, loci, chromosomal length, and... Read More

The Evolutionary Development of Multicellular Organisms

The beginning of the Cambrian era saw a widespread arrival of multi-cellular organisms, particularly in the form of sponges.... Read More

Y chromosome

Y chromosome Definition The Y chromosome constitutes one member of the pair of sex chromosomes within an organism, a common... Read More

Vascular plants

Definition of Vascular plants The term 'vascular' is derived from the Latin word vāsculum, vās, meaning "a container and... Read More

Purebred

Definition noun, plural: purebreds An animal that is of pure breed, i.e. whose ancestors on both sides have been members of... Read More

Meiosis – The Genetics of Reproduction

The genetic information found in DNA is essential in creating all the characteristics of an organism. This remains the case... Read More

Kingdom

Kingdom is a taxonomic rank used in biological classification systems to simplify the understanding of the biological world.... Read More