3356 results found

Search Results for: origin

A New Theory on the Origin of Animal Multicellularity

Multicellular life, purportedly, started around 600 million years ago. From single-celled, certain organisms eventually... Read More

Between Necessity and Probability: Searching for the Definition and Origin of Life (Advances in Astrobiology and Biogeophysics)

Between Necessity and Probability: Searching for the Definition and Origin of Life (Advances in Astrobiology and... Read More

Originals

original 1. Pertaining to the origin or beginning; preceding all others; first in order; primitive; primary; pristine; as,... Read More

Origin

Definition noun, plural: origins (1) The birth, existence, or beginning; starting point. (2) The cause; that which causes... Read More

Recent single-origin hypothesis

Definition noun The hypothesis that modern humans came from or evolved from a single origin (i.e. in Africa) and then these... Read More

The FIFTH MIRACLE: The Search for the Origin and Meaning of Life

 The FIFTH MIRACLE: The Search for the Origin and Meaning of Life    ... Read More

Nervous System

    THE is the most complicated and highly organized of the various systems which make up the human body. It is the... Read More

Origins of Life : On Earth and in the Cosmos (2nd Ed)

 Origins of Life : On Earth and in the Cosmos   ... Read More

Replication origin

Replication origin A unique dNA sequence of a replicon at which dNA replication is initiated and proceeds bidirectionally or... Read More

Analogous

In evolutionary biology, the meaning of analogous is “having similarities in functions but different evolutionary... Read More

Analogous structures

In evolutionary biology, analogous structures are defined as biological structures having similar or corresponding functions... Read More

Homology

Definition noun, plural: homologies (1) A degree of similarity, as in position or structure, and that may indicate a common... Read More

Prokaryotic Ancestor of Mitochondria: on the hunt

The alphaproteobacteria have been widely cited as the closest relative-- and possibly the prokaryotic ancestor -- of the... Read More

Sound

sound The air bladder of a fish; as, cod sounds are an esteemed article of food. Origin: AS. Sund a swimming, akin to E.... Read More

Lime

Lime 1. To smear with a viscous substance, as birdlime. These twigs, in time, will come to be limed. (L'Estrange) 2. To... Read More

Native

native 1. One who, or that which, is born in a place or country referred to; a denizen by birth; an animal, a fruit, or... Read More

Living things

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

Abiogenesis

Definition noun plural: abiogeneses a·bi·o·gen·e·sis, eɪbaɪəʊˈdʒɛnəsɪs (1) The theory postulating that... Read More

Ton

ton The prevailing fashion or mode; vogue; as, things of ton. If our people of ton are selfish, at any rate they show they... Read More

Pile

pile 1. To lay or throw into a pile or heap; to heap up; to collect into a mass; to accumulate; to amass; often with up; as,... Read More

Divergent evolution

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

Replacement model

Definition noun A theory proposed by Christopher Stringer and Peter Andrews suggesting that the place of origin of modern... Read More

Gall

Gall 1. To fret and wear away by friction; to hurt or break the skin of by rubbing; to chafe; to injure the surface of by... Read More

Plane

Plane 1. To make smooth; to level; to pare off the inequalities of the surface of, as of a board or other piece of wood, by... Read More

Germ

Germ 1. (Science: biology) That which is to develop a new individual; as, the germ of a foetus, of a plant or flower, and... Read More

Wood

wood mad; insane; possessed; rabid; furious; frantic. Alternative forms: wode Our hoste gan to swear as if he were wood.... Read More

Gills

Gill a woody glen; a narrow valley containing a stream. Origin: Icel. Gil. 1. (Science: anatomy) An organ for aquatic... Read More

Scar

scar To mark with a scar or scars. Yet I'll not shed her blood; Nor scar that whiter skin of hers than snow. (Shak) His... Read More

Derivation

Derivation 1. A leading or drawing off of water from a stream or source. 2. The act of receiving anything from a source; the... Read More

Spire

spire To breathe. Origin: L. Spirare to breathe. See Spirit. 1. A slender stalk or blade in vegetation; as, a spire grass or... Read More

Traffic

traffic 1. Commerce, either by barter or by buying and selling; interchange of goods and commodities; trade. A merchant of... Read More

Dim

Dim 1. Not bright or distinct; wanting luminousness or clearness; obscure in luster or sound; dusky; darkish; obscure;... Read More

Natural selection

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

Roe

roe (Science: zoology) A roebuck. See Roebuck. The female of any species of deer. Origin: OE. Ro, AS. Rah; akin to D. Ree,... Read More

Pair

Pair 1. To be joined in paris; to couple; to mate, as for breeding. 2. To suit; to fit, as a counterpart. My heart was made... Read More

Pills

pill The peel or skin. Some be covered over with crusts, or hard pills, as the locusts. Origin: Cf. Peel skin, or... 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

Inorganic molecule

Definition noun, plural: inorganic molecules (1) A molecule not consisting of carbon atoms. (2) Any molecule that is not... Read More

Germs

Germ 1. (Science: biology) That which is to develop a new individual; as, the germ of a foetus, of a plant or flower, and... Read More

Derive

Derive 1. To turn the course of, as water; to divert and distribute into subordinate channels; to diffuse; to communicate;... Read More