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tree in Biological Definition

Biology

... of life (clockwise from top-left) E. coli , tree fern , gazelle , Goliath beetle Biology ... of living organisms A phylogenetic tree of all living things , based on rRNA gene ... person-maintained site with tutorials. The tree of Life : A multi-authored, distributed Internet ...

Cladistics

... orientation yields a cladogram reminiscent of a tree . In a cladogram, all organisms lie at the ... necessary for classifying earlier sections of the tree - for instance, the early vertebrates that would ... See also Scientific classification tree of life ...

Evolutionary tree

... The evolutionary tree of living things is currently supposed to run ... along the lines of that listed below. Most of the tree was based on ideas from cladistics ; where more ... Hypothetically taxonomy would follow the tree whenever possible, but in many places it does not ...

Phylogeny

... . See also PhyloCode Phylogenetic tree Evolutionary tree Important publications in phylogeny External links The tree of Life PhyloCode ...

Phylogenetic tree

... Fig. 1: A rooted tree for rRNA genes Fig. 2: Unrooted tree for myosin gene A phylogenetic tree is a ...

Taxonomy

... scheme. Mathematically, a taxonomy is a tree structure of classifications for a given set of ... is accessible from the article evolutionary tree . A recent neologism, folksonomy , should not ... Taxonomy (Sharks) External links tree of Life BioLib NCBI Taxonomy ...

Biodiversity

... of recorded history. For example, quinine comes from cinchona tree (used to treat malaria ), digitalis from the foxglove plant (chronic ... of visible life to biodiversity is very small indeed". "On the tree of life, based on analyses of small-subunit ribosomal RNA , visible life ...

Bacterium

... in twos. E. Spiral-shaped. F. Comma-shaped. Phylogenetic tree of Bacteria Bacteria come in a variety of different shapes. Most ... 1998;180:4765-4774. Fulltext / PMID 9733676 . External links tree of Life Videos of bacteria swimming and tumbling, use of optical ...

Bacterium

... in twos. E. Spiral-shaped. F. Comma-shaped. Phylogenetic tree of Bacteria Bacteria come in a variety of different shapes. Most ... 1998;180:4765-4774. Fulltext / PMID 9733676 . External links tree of Life Videos of bacteria swimming and tumbling, use of optical ...

Evolution

... . Ancestry of organisms A phylogenetic tree of all living things , based on rRNA gene data, showing the ... evolutionary algorithm evolution of sex evolutionary tree experimental evolution fitness landscape ...

Human

... ratio or encephalization quotient (EQ) of all animals, with the tree shrew having the highest [8] and the bottlenose dolphin very similar ... A Look at Modern Human Origins by C. David Kreger. Homo Sapiens tree of Life web project "Why Humans and Their Fur Parted Ways" by ...

Leaf

... pigments ( carotenoids and anthocyanins ) are revealed when the tree responds to cold and reduced sunlight by curtailing chlorophyll ... ( Portulacaceae ). In some Acacia species, such as the Koa tree ( Acacia koa ), the petioles are expanded or broadened and function like ...

Molecular phylogeny

... place it on a map of evolutionary relationships known as the phylogenetic tree . Every living organism is composed of certain substances such as DNA ... be done quickly and easily. As a result many branches of the phylogenetic tree have been disassembled and reassembled into patterns based on molecular ...

Plant

... believe to be the first modern tree, Archaeopteris . This fern-like tree combined a woody trunk with the fronds of a fern, but produced no seeds. ... (love of plants) Vegetation Structure External links tree of Life Chaw, S.-M. et al. Molecular Phylogeny of Extant Gymnosperms ...

Plant

... believe to be the first modern tree, Archaeopteris . This fern-like tree combined a woody trunk with the fronds of a fern, but produced no seeds. ... (love of plants) Vegetation Structure External links tree of Life Chaw, S.-M. et al. Molecular Phylogeny of Extant Gymnosperms ...

Alfred Russel Wallace

... of the zoogeographical boundary now known as the Wallace line . One of his better known species descriptions during this trip is the gliding tree frog Rhacophorus nigropalmatus , Wallace's flying frog. His studies there were eventually published in 1869 as The Malay Archipelago . ...

Animal

... intelligence Animal locomotion Biota Zoology Zoo Clean animals Unclean animals Animal (Muppet) External links tree of Life A Multimedia Database of Various UK or Endangered Species ...

Archaea

... flagella that are notably different in composition and development from the superficially similar flagella of bacteria. A phylogenetic tree based on rRNA data, showing the separation of bacteria, archaea, and eukaryotes. Habitats Many archaeans are extremophiles . Some live at ...

Brain

... the skull . Vertebrates are characterized by increasing complexity in the cerebral cortex as one moves up the phylogenetic and evolutionary tree . Primitive vertebrates, like fish, reptiles, and amphibians have cortices with less than six layers of neurons, a structure known as allocortex ...

Carolus Linnaeus

... the Latin surname Linnaeus as more appropriate for a clergyman on his matriculation at Lund University ; the name deriving from the lime [1] tree after which the family farm, Linnagrd, took its name. Linnaean taxonomy Although taxonomists, in almost any biological field, are familiar ...

Common descent

... archaea , and eukaryotes (see Three domain system ). Analysis of the small differences in the genetic code has also provided support for UCD. The tree of Life Web Project ...

Ebola

... In 1999, scientist Maurice Iwu announced at the International Botanical Congress that a fruit extract of Garcinia kola, a West African tree long used by local traditional healers, stopped ebola virus replication in lab tests. Prevention Although there is no specific treatment for ...

Eukaryote

... between the different supergroups remain almost entirely uncertain. In particular, there is dispute about where the root of the evolutionary tree belongs, and as a result what the earliest eukaryotes were like. References S. L. Baldauf (2003). The Deep Roots of Eukaryotes. ...

Fungus

... 1995. Ainsworth and Bisby's Dictionary of the Fungi (8th Ed.). CAB International, Wallingford, United Kingdom. 616p. External links tree of Life Web Project: Fungi The Mycology Net MykoWeb: Mushrooms, Fungi, Mycology North American Mycological Association Pacific ...

Lichen

... Crustose and foliose lichens on a wall Foliose lichen on basalt Usnea australis , a fruticose form, growing on a tree branch Lichens are symbiotic organisms made up by the association of microscopic green algae or cyanobacteria and filamentous fungi . ...

Animal

... intelligence Animal locomotion Biota Zoology Zoo Clean animals Unclean animals Animal (Muppet) External links tree of Life A Multimedia Database of Various UK or Endangered Species ...

Physiology

... to non-human animal species . Plant physiology also borrows techniques from both fields. Its scope of subjects is at least as diverse as the tree of life itself. Due to this diversity of subjects, research in animal physiology tends to concentrate on understanding how physiological traits ...

Species

... based on genetic markers. The results have been nothing short of revolutionary, resulting in the reordering of vast expanses of the phylogenetic tree ( see also: molecular phylogeny ). A species name can be: A noun in apposition with the genus: Panthera leo . The words agree in case ...
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