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life in Biological Dictionary

Xenobiology

... is now different: while astrobiologists look for life that is based on water and carbon, xenobiologists ... more "alien" life-forms, not excluding life in non-terrestrial planets, stars or larger or ... or Exobiology (see Xenobiology ) ... ... or life beyond planet Earth is called xenobiology (or ...

Sporophyte

... All land plants, and some algae, have life cycles in which a haploid gametophyte ... (a haploid and a diploid phase) occur in the life history of a plant, each phase producing the ... of two or more alternating forms in the life cycle of plants, algae, and ... of the ...

Spontaneous generation

... is an obsolete theory regarding the origin of life from inanimate matter, which held that this ... extant species, this ... The assertion that life can instantaneously arise from nonliving matter ... Generation - Learn the history. Can life generate itself ... Today we know that all ...

Slime molds

... such as to make ... While slime molds have a life cycle that resembles that of fungi, and once were ... slime mold ... Slime molds have complex life cycles that may be divided into an animallike ... ... are eukaryotes. ... Slime molds have complex life cycles that may be divided into an animallike ... ...

Second messenger

... from that of the ... Second life Messenger FAQ. Here are some commonly asked questions about Second life Messenger . How do I download SL Messenger ? ... Second life Messenger is ready for beta testing. SL ...

Rudolf Steiner

... education. ... Rudolf Steiner 1861-1925 - His life and Work ... Rudolf Steiner . Steiner's life and Teachings. Rudolf Steiner (1861-1925) is ... ... An evaluation of Rudolf Steiner's life and work in New Times ... Rudolf Steiner ...

Ribosomes

... archaea and eukaryotes, the three domains of life on Earth, have significantly different structure ... site that teaches the basics of biology and life science to everyone! ... When you need to make ... theorized that ribosomes were once independent life forms, ... The prevailing notion was that ...

Protocells

... current approaches to making new forms of life from scratch in the ... Protocells : ... : Social and ethical implications of recreating life (MIT ... ... ordered polyamino acids), ... at the seventh European Conference of Artificial life (ECAL) ... (2) ECAL Dortmund workshop: ...

Origin of life

... " Origin of life " redirects here. For views on the origins of life outside the natural sciences, ... There is no ... model" of the origin of life . ... A discussion main models on the ...

Mesozoic Era

... the Mesozoic era an abundance of new forms of life developed, including ... The Mesozoic era is ... can ... The Mesozoic Era -The Challenges Of life On Land. ... Most researchers agree that the ... Era including paleogeography and tectonics, and life forms. ... The Mesozoic Era , covering an ...

Life form

... (Redirected from life form ) Jump to: navigation, search " life on Earth" ... life (viruses) ... In at least some form , all ...

Larva

... ," Microsoft® Encarta® Online ... It's a bug's life for residents of Host, Mo., when mutant insect ... and more. ... Larva refers to the stage in the life cycle of ... With a command from the Overmind, ... the span of an ... Information about the life cycle of the mosquito. ......

Haploid gametophyte

... The Alternation of phases describes the life cycle of plants, fungi and protists. A ... ... Gametophyte – haploid stage in the life cycle of plants that produces haploid ... of ... , gamete producing sexual phase in the life cycle of ... ... gametophyte is the ...

Haploid

... number of chromosomes. ... THE HAPLOID life CYCLE. Haploid life cycle is the most common in algae (without ... ... , or black bread mold, also has a haploid life history. ... haploid -- Having a single set ...

Gymnosperms

...... Gymnosperms have a sporophyte dominant life cycle as with all other ... " Gymnosperms ... site that teaches the basics of biology and life science to everyone! ... But remember this: ... ... The Gymnosperm Database: Home Page ... life on land as we know it is shaped largely by the ...

Extinction

... Extinction that have appeared since History of life was ... Looks at the invalid hypotheses and ... Die. Five mass extinctions have occurred since life began on Earth. Are ... Extinction biology, ... unique. There have been 17 major extinctions of life during the past 600 million years. And, in most ...

Chordates

... They are united by having, at some time in their life cycle, a notochord, a hollow dorsal nerve ... fundamental questions about the origins of life ... A companion website to THE SHAPE OF LIFE, ... ... Home Product Guides Branches on the Tree of life Chordates ... Information about Chordates ...

Biome

... chiefly by the dominant forms of plant life and Habitat Animal Printouts. The Earth has ... and moved many times during the history of life on Earth. ... Biome , also known as life zones, all plants, animals, and other organisms, ...

Biologist

... biology through ... biology n. The science of life and of living organisms, including their ... Biologist . Marine biologists study ocean life and its relationship to the environment. Studies ... is usually a person with advanced degrees in life sciences. ... As a result, a marine biologist ...

Biodiversity

... Biodiversity is the variation of life forms within a given ecosystem, biome, or for the ... refers to the incredible variety of life found ... International Programme of ... diversity, biodiversity is the variety of all life in a ... Since 1991 the California ...

Bacteriophage lambda

... lambda . ... Let us remember the split life cycle of the temperate bacteriophage lambda : ... To understand the life cycle of bacteriophage lambda , we must first ... ... Bacteriophage lambda has two different life cycles. ... BACTERIOPHAGE LAMBDA ... the ...

Artificial life

... Artificial life is a field of study and an associated art form which examine systems related to life , its processes, and its evolution through ... biochemistry. There are ... Synthetic life and ...

Adenine

... ... The molecule adenine is central to all life functions providing the basis for ... life is an elaboration of adenine . Adenine determines the style of life on ... Definition and other additional ...

Abiogenesis

... evolution", is the study of how life on Earth could have arisen from inanimate matter. ... is the theory that under the proper conditions life can arise ... ABIOGENESIS IS THE THEORY THAT UNDER THE PROPER CONDITIONS life CAN ARISE ... Abiogenesis summary with 21 ...

Zoology

... news, ... Zoology . Full-text news, articles and photos on animal life sciences. ... Zoology . Independent Report Calls For Rethink On Farm ... zoology has not taught at the schoolroom. ... Zoology is the branch of life sciences that ... ...

Virus

... copying to another program, computer boot sector or document. Virus life science, infectious agent found in virtually all ... Virus News - life Science ... that make up the virus particle are called structural ...

Thoracic cavity

... ... The size of the thoracic cavity is constantly varying during life with the ... thoracic cavity synonyms, thoracic cavity ... ... The size of the thoracic cavity is constantly varying during life with the ... downward and backward, so that the thoracic cavity is ...

Spore

... ... Spore Release Date: September 07, 2008 Genre: Simulation Style: life Development Sim Similar Games: Black & White 2 (IBM PC Compatible), ... you'll find the latest Maxis created Spore videos. ... Spore is a life simulation video game based on evolution and the universe. ... ESRB ...

Seed plant

... : Fossil Record. Today, the seed plants are some of the most ... life on land as we know it is shaped largely by the activities of seed plants . ... life on land as we know it is shaped largely by the activities of seed ...

Reticulocyte Lysate

... "Rabbit Reticulocyte Lysate /Wheat Germ Extract Combination System" ... life Science Products / Laboratory Supplies " Molecular Biology " In Vitro ... ... System Protocol - http://www. ... An easy-to-use directory for life science and biomedical research products. ... Suppliers of: Reticulocyte ...

Protista

... heliozoa) from Indiana. ... Evolution of the Protista Kingdom. Early life on Earth. Evolved from bacteria ... 2001. http://www.ucmp.berkeley .edu/ ... Protista a polyphyletic group. ... Scientific classification sorts all life forms on Earth into five kingdoms: monera, protista , fungi, plantae, and ...

Prokaryotes

... a nucleus that houses its genetic ... Two of the major domains of life are prokaryotes bacteria and archaea. ... Some prokaryotes have an ... Biology4Kids.com! The web site that teaches the basics of biology and life science to everyone! ... PROKARYOTES - MISSING A NUCLEUS ... ...

Phylogenetic tree

... connects all organisms to each other. ... read more about the Tree of life Web ... Collaborative Internet project containing information ... expanding wealth of phylogenetic information from across the tree of life offers ... PhyloFinder, a new phylogenetic tree search engine that ...

Paleontology

... history of paleontology traces the effort to understand the history of life on Earth by studying the fossil record left behind by living organisms. ... Survey ... Paleontology , the science which uses fossils to study life in past geologic time, ... Paleontology summary with 14 pages of ...

Ontogeny

... and developmental psychobiology. Ontogeny is that branch of life science which deals with the study of origin and development of an ... Ontogeny is a conceptual work designed to represent the sequence of life from ... Ontogeny is defined by the American Heritage Dictionary as the ...

Nerve chord

... that located in brain or in the spinal chord is ... The Hall of Ocean life explores marine species and ecosystems, current ... Having a primitive ... for ... 2. A dorsal, hollow nerve chord present at some time in its life cycle. ... Frogs and toads poses vocal chords . 7. Brain with ten pairs ...

Mutation

... or changed. ... Mutation is a phenomenon significant to many aspects of life on Earth and is one ... This type of mutation is present throughout a person's life in virtually every ... The Wellcome Trust offers a brief overview of ...

Mitochondria

... Biology4Kids.com! The web site that teaches the basics of biology and life science to everyone! ... enough energy to survive, more mitochondria can ...... Because the mitochondria within the fertilized oocyte is what the new life will ... Mitochondria are structures within cells that convert the ...

Microsporangium

... function in plant reproduction ( in plant (life form): Heterosporous life histories; ... mitotically to form the embryo, which then develops ... mi ' crosporan ' giate ... you find a microsporangium in the life ... sporangium n. , pl. -gia . A single-celled or many-celled structure ...

Methylation

... methylation is the ... Methylation is a mover and shaker. ... life Extension Magazine December 1998: Report Methylation , Epigenetics and ... is a major and fundamental determinant of health and sickness, or life ... evolved sufficient rather than optimal methylation . ... DNA ...
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