27 results found

Search Results for: ancestry

Homology

In biology, homology refers to similarities caused by shared ancestry between two structures or genes from distinct species.... Read More

Inbreeding

Inbreeding is a type of breeding or mating where closely related individuals with a common ancestor produce progenies with... Read More

Homologous structures

Homologous Structures Definition What are homologous structures? In biology, homologous structures are physical features... Read More

Eukaryote

Eukaryote refers to any of the single-celled or multicellular organisms whose cell contains a distinct, membrane-bound... Read More

Predisposing factors

All organisms can be born with or develop a disease at any point in their lifetime. When someone is born with a disease, it... Read More

Phylogenetics

Phylogenetics Definition Phylogenetics is the scientific study of phylogeny. It studies evolutionary relationships among... 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

Deoxyribonucleic acid

Deoxyribonucleic Acid (DNA) Definition A nucleic acid refers to any of the group of complex compounds made up of linear... Read More

The Hominids

Although humans in today's world are the most advanced species on the planet, we previously shared the exact same genetic... Read More

Synapsid

Any member of the Synapsida clade of animals is referred to as a synapsid. They are believed to have descended from the... Read More

Phylogenetic tree

Definition noun, plural: phylogenetic tree A tree diagram that shows the evolutionary histories and relationships of groups... Read More

Camelid

Camelid Definition A canelid refers to any of the even-toed ungulates of the family Camelidae, e.g. camels, llamas,... Read More

Last universal ancestor

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

Synapomorphy

Definition noun, plural: synapomorphies An advance character state shared among two or more taxa inherited from the most... Read More

Apomorphy

Apomorphy Definition Apomorphy (biology definition): A derived trait or characteristic that identifies a species or a... Read More

Omnivore

Organisms need to eat food in order to gain energy and survive in the ecosystem. Often, living things are categorized by how... Read More

Classification system

Classification Systems Definition In life, many things are classified, that is, to put into categories or groups based on... Read More

Branches of biology

What is a Branch of Biology? A branch of biology is a specialized field or a sub-discipline in a much broader field of... 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

Embryo

An embryo refers to the early developmental stage of a multicellular organism that follows fertilization. This stage... Read More

Unicellular

Unicellular organisms are organisms consisting of one cell only that performs all vital functions including metabolism,... 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

Hermaphrodite

We all know that typically living organisms are divided into two main categories of sex-based on their biological structure.... Read More

Vestigial

Vestigial (organ) is a degenerate organ or structure or physical attribute that has little to no function in the species but... Read More

Analogy

Definition noun, plural: analogies (evolutionary biology) Structural or behavioural similarity in terms of functions between... Read More

Lineage

Lineage (Science: genetics) term used to describe cells with a common ancestry, that is developing from the same type of... 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