663 results found

Search Results for: life

Life

Life Definition noun, plural: lives (1) A distinctive characteristic of a living organism from dead organism or non-living... Read More

Origins of Life on Earth

Although Earth was created around 4.5 billion years ago, life began to exist not long after. Due to the huge timescales... Read More

The Origins of Life

Although Earth was created around 4.5 billion years ago, life began to exist not long after. Due to the huge timescales... 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

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

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

Indirect life cycle

Definition noun A type of parasitic life cycle wherein the parasite is transmitted indirectly from one host to the next,... 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

Life cycle

Definition noun The whole life history of an organism, usually depicted through a series of developmental stages (e.g. from... Read More

Evolution of Life – Ancient Earth

Continuing from the previous tutorial investigating the origins of life on Earth.... Life began to flourish, and the... Read More

The Origins of Life

This tutorial digs into the past to investigate the origins of life. The section is split into geological periods in the... 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

Half-life

Definition noun, plural: half-lives (1) Biological half-life, i.e. the period in which the amount of substance inside the... Read More

Abiogenesis

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

Biology

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

Biosphere

What is biosphere? The biosphere is that part of the Earth where living things thrive and live. It is the portion of the... 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

Non-living thing

A non-living thing in biology means any form without life, such as an inanimate body or object. Compared with the entity... Read More

Scientists brought dead pig brain partly back to life

Death is inevitable to any entity that has life. When there is a beginning there ought to be an end.  However, the recent... Read More

Life support systems

Life support systems systems that provide all or most of the items necessary for maintaining life and health. Provisions are... 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

Direct life cycle

Direct life cycle (Science: epidemiology) a life cycle in which a parasite is transmitted directly from one host to the next... Read More

Life table

Life table a representation of the probable years of survivorship of a defined population of subjects; since survivorship is... Read More

Life expectancy

Life expectancy (Science: epidemiology) longevity, the average length of life of individuals in a... Read More

Biogenesis

Definition noun plural: biogeneses (1) The process in which life forms arise from similar life forms (2) A theory that... Read More

Protist

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

Endosymbiotic theory

Endosymbiotic theory definition noun (evolutionary biology) A theory suggesting that the organelles such as mitochondria... Read More

At Home in the Universe: The Search for the Laws of Self-Organization and Complexity

At Home in the Universe: The Search for the Laws of Self-Organization and Complexity  ... Read More

Fecundity

Fecundity Definition The meaning of fecundity is the reproductive rate (fecundity rate) or the performance of an individual... Read More

Animal

Animal Definition An animal (plural: animals) refers to any of the eukaryotic multicellular organisms of the biological... Read More

RNA-DNA World Hypothesis?

How did life start as we know it? In the scientific community, the "RNA World Hypothesis" has many adherents. Many believed... Read More

Spontaneous generation

Definition noun plural: spontaneous generations The previously popular notion that living organisms arise or develop from... Read More

Why Embryonic Stem Cell Use is Unethical

By Vicki Mozo Embryonic Stem Cell research offers a remarkable way to treat various disorders where conventional... Read More

Lifespan

Lifespan 1. The duration of life of an individual. 2. The normal or average duration of life of members of a given... Read More

Infective stage

Definition noun (parasitology) The stage in the life cycle of an endoparasite wherein it can initiate infection to its... 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

Phylogeny

Phylogeny refers to the evolutionary history of the development of a species or of a taxonomic group of organisms. The... Read More

Codon

What does codon mean? A codon, in biology, is the basic genetic unit of life that acts as the template for the amino acid... Read More

Plant

Plant Definition (botany) Any of the eukaryotic organisms of the biological kingdom Plantae, characterized by being... Read More