I am posting 10 versions of the Lead here, and invite comment: are any additional deletions, reversions, or additions needed for the current veersion? Would like to recruit additional opinions. Some of the text under discussion is in Boldface'.
21 Aug 2017
Animals are multicellular, eukaryotic organisms of the kingdom Animalia (also called Metazoa). The animal kingdom emerged as a clade within Apoikozoa as the sister group to the choanoflagellates. Animals are motile, meaning they can move spontaneously and independently at some point in their lives. Their body plan eventually becomes fixed as they develop, although some undergo a process of metamorphosis later in their lives. All animals are heterotrophs: they must ingest other organisms or their products for sustenance.
Most known animal phyla appeared in the fossil record as marine species during the Cambrian explosion, about 542 million years ago. Animals can be divided broadly into vertebrates and invertebrates. Vertebrates have a backbone or spine (vertebral column), and amount to less than five percent of all described animal species. They include fish, amphibians, reptiles, birds and mammals. The remaining animals are the invertebrates, which lack a backbone. These include molluscs (clams, oysters, octopuses, squid, snails); arthropods (millipedes, centipedes, insects, spiders, scorpions, crabs, lobsters, shrimp); annelids (earthworms, leeches), nematodes (filarial worms, hookworms), flatworms (tapeworms, liver flukes), cnidarians (jellyfish, sea anemones, corals), ctenophores (comb jellies), and sponges. The study of animals is called zoology.
23 Aug 2017 IiKkEe
An animal is any member of a group of biological organisms classified in taxonomy as the kingdom Animalia', based on eight specific shared characteristics. They are 1)multicellular, 2)eukaryotic (their cells have a nucleus), and 3)motile (they can move spontaneously and independently). They are 4)heterotrophs (they must ingest other organisms or their products for sustenance). To perpetuate their species they engage in 5)sexual reproduction, and during early development they form a 6)blastocyst. They have 7)specialized tissues and an 8)advanced nervous system.
Most known animal phyla appeared in the fossil record as marine species during the Cambrian explosion, about 542 million years ago. The study of animals is called zoology.
Animals can be divided broadly into the subphyla vertebrates and invertebrates. Vertebrates have a backbone or spine (vertebral column), and constitute less than five percent of all described animal species. They include fish, amphibians, reptiles, birds and mammals. Invertebrates lack a backbone. These include molluscs (clams, oysters, octopuses, squid, snails); arthropods (millipedes, centipedes, insects, spiders, scorpions, crabs, lobsters, shrimp); annelids (earthworms, leeches), nematodes (filarial worms, hookworms), flatworms (tapeworms, liver flukes), cnidarians (jellyfish, sea anemones, corals), ctenophores (comb jellies), and sponges.
24Aug 2017 IiKkEe
An animal is any member of a group of biological organisms classified in taxonomy as the kingdom Animalia, based on certain shared characteristics. They are multicellular, eukaryotic organisms. They are motile, meaning they can move spontaneously and independently at some point in their lives. Their body plan eventually becomes fixed (stable) as they develop, although some undergo a process of metamorphosis later in their lives. All animals are heterotrophs: they must ingest other
organisms or their products for sustenance.
Most known animal phyla appeared in the fossil record as marine species during the Cambrian explosion, about 542 million years ago. The study of animals is called zoology.
Animals can be divided broadly into vertebrates and invertebrates. Vertebrates have a backbone or spine (vertebral column), and amount to less than five percent of all described animal species. They include fish, amphibians, reptiles, birds and mammals. The remaining animals are the invertebrates, which lack a backbone. These include molluscs (clams, oysters, octopuses, squid, snails); arthropods (millipedes, centipedes, insects, spiders, scorpions, crabs, lobsters, shrimp); annelids (earthworms, leeches), nematodes (filarial worms, hookworms), flatworms (tapeworms, liver flukes), cnidarians (jellyfish, sea anemones, corals), ctenophores (comb jellies), and sponges.
later 24 Aug 2017 (1st paragraph only - the rest unchanged) IiKkEe
An animal is an organism which is classified by taxonomy to the kingdom Animalia, based on the following characteristics. Animals are multicellular, and during development these cells differentiate into specialized tissues and organs. They are eukaryotic: their chromosomes are contained within a distinct nucleus. They are motile: they move spontaneously and independently. They are heterotrophs: they ingest other organisms or their products for sustenance. They use sexual reproduction (with some exceptions) to perpetuate their species, and during early embryonic development they pass through a stage called a blastocyst.
later 24 Aug 2017 - 1st paragraph only IiKkEe
An animal is any member of a group of biological organisms classified in taxonomy as the kingdom Animalia, based on certain shared characteristics. They are multicellular, eukaryotic organisms. They are motile, meaning they can move spontaneously and independently at some point in their lives. Their body plan eventually becomes fixed (stable) as they develop, although some undergo a process of metamorphosis later in their lives. All animals are heterotrophs: they must ingest other
organisms or their products for sustenance.
27Aug 2017 IiKkEe
Animals are organisms that form the biological kingdom Animalia. They are eukaryotic and multicellular. They are motile: they move spontaneously and independently. They are heterotrophs: they must ingest other organisms or their products for sustenance. They use sexual reproduction to perpetuate their species, and during early embryonic development they pass through a stage called a blastula which allows for differentiation into specialized tissues and organs. Some organisms have most but not all of these features, but are nevertheless classified as an animal.
Most known animal phyla emerged in the fossil record as marine species during the Cambrian explosion, about 542 million years ago. The study of animals is called zoology.
Animals can be divided broadly into vertebrates and invertebrates. Vertebrates have a backbone or spine (vertebral column), and amount to less than five percent of all described animal species. They include fish, amphibians, reptiles, birds and mammals. The remaining roughly ninety five per cent are the invertebrates, which lack a backbone. These include molluscs (clams, oysters, octopuses, squid, snails); arthropods (millipedes, centipedes, insects, spiders, scorpions, crabs, lobsters, shrimp); annelids (earthworms, leeches), nematodes (filarial worms, hookworms), flatworms (tapeworms, liver flukes), cnidarians (jellyfish, sea anemones, corals), ctenophores (comb jellies), and sponges.
Animals can also be categorized based on the symmetry of their bodies. Sponges have no regular symmetry; cnidarians and ctenophores are radially symmetrical; all other animals are bilaterally symmetrical, and are called Bilateria.
28 Aug 2017
Animals are eukaryotic organisms that form the biological kingdom Animalia. With few exceptions, animals are multicellular, able to move, and consumers of organic material. Almost all reproduce sexually, and animal embryonic development includes the characteristic blastula stage.
Although animals may undergo metamorphoses as they develop, their body plans eventually stabilize and are helpful in their classification. Animals can be divided broadly into vertebrates and invertebrates. Vertebrates—fishes, amphibians, reptiles, birds, and mammals—have a backbone or spine (vertebral column), and amount to less than five percent of all described animal species. All vertebrate species and most invertebrate species—arthropods, molluscs, roundworms, ringed worms, flatworms, and other phyla in Ecdysozoa and Spiralia—are bilaterally symmetric. Cnidarians and echinoderms (later in development) are radially symmetric while ctenophores are biradially symmetric. Sponges have no symmetry.
The animal kingdom emerged as a clade within Apoikozoa as the sister group to the choanoflagellates. Most known animal phyla appeared in the fossil record as marine species during the Cambrian explosion, about 542 million years ago.
Zoology is the study of animals.
28 Aug 2017 later
Animals are eukaryotic organisms that form the biological kingdom Animalia. With few exceptions, animals are multicellular, able to move, and consumers of organic material. Almost all reproduce sexually, and animal embryonic development includes the characteristic blastula stage.
Although animals may undergo metamorphoses as they develop, their body plans eventually stabilize and are helpful in their classification. Animals can be divided broadly into vertebrates and invertebrates. Vertebrates—fishes, amphibians, reptiles, birds, and mammals—have a backbone or spine (vertebral column), and amount to less than five percent of all described animal species. All vertebrate species and most invertebrate species—arthropods, molluscs, roundworms, ringed worms, flatworms, and other phyla in Ecdysozoa and Spiralia—are bilaterally symmetric. Cnidarians and echinoderms (later in development) are radially symmetric while ctenophores are biradially symmetric. Sponges have no symmetry.
Zoology is the study of animals. Taxonomy classifies organisms into groups. There are two taxonomic approaches: the Linnaean system, which classifies organisms according to an eight (or more) level hierarchy based on features; and a cladistic system, which classifies organisms into clades and creates branching diagrams (trees) based on the evolutionary principle of the most recent common ancestor.
The animal kingdom emerged as a clade within Apoikozoa as the sister group to the choanoflagellates. Most known animal phyla appeared in the fossil record as marine species during the Cambrian explosion, about 542 million years ago.
29 Aug 2017 IiKkEe
Animals are eukaryotic organisms that form the biological kingdom Animalia. With few exceptions, animals are multicellular, motile (able to move), and are heterotrophs (consumers of organic material). Almost all reproduce sexually, and animal embryonic development includes the characteristic blastula stage.
Although animals may undergo metamorphoses as they develop, their body plans eventually stabilize and are helpful in their classification. Animals can be divided broadly into vertebrates and invertebrates. Vertebrates—fishes, amphibians, reptiles, birds, and mammals—have a backbone or spine (vertebral column), and amount to less than five percent of all described animal species. All vertebrate species and most invertebrates - arthropods, molluscs, roundworms, ringed worms, flatworms, and other phyla in Ecdysozoa and Spiralia—are bilaterally symmetric. Echinoderm larvae are bilaterally symmetrical, although they develop into radially symmetrical adults. Cnidarians are radially symmetric, while ctenophores are biradially symmetric. Sponges have no symmetry.
Zoology is the study of animals. Taxonomy is the naming, and classification into groups, of organisms.
The animal kingdom emerged as a clade within Apoikozoa as the sister group to the choanoflagellates. Most known animal phyla appeared in the fossil record as marine species during the Cambrian explosion, about 542 million years ago.
30 Aug 2017 - current - Rhinopias
Animals are eukaryotic organisms that form the biological kingdom Animalia. With few exceptions, animals are multicellular, motile (able to move), and are heterotrophs (consumers of organic material). Almost all reproduce sexually, and animal embryonic development includes the characteristic blastula stage.
Although animals may undergo metamorphoses as they develop, their body plans eventually stabilize and are helpful in their classification. Animals can be divided broadly into vertebrates and invertebrates. Vertebrates—fishes, amphibians, reptiles, birds, and mammals—have a backbone or spine (vertebral column), and amount to less than five percent of all described animal species. All vertebrate species and most invertebrates—arthropods, molluscs, roundworms, ringed worms, flatworms, and other phyla in Ecdysozoa and Spiralia—are bilaterally symmetric. Echinoderm larvae are bilaterally symmetrical, although they develop into radially symmetrical adults. Cnidarians are radially symmetric, while ctenophores are biradially symmetric. Sponges have no symmetry.
Zoology is the study of animals.
The animal kingdom emerged as a clade within Apoikozoa as the sister group to the choanoflagellates. Most known animal phyla appeared in the fossil record as marine species during the Cambrian explosion, about 542 million years ago.
IiKkEe (talk) 12:37, 31 August 2017 (UTC)
Evolution of the holozoan ribosome biogenesis regulon
Seth J Brown, Michael D ColeEmail author and Albert J ErivesEmail author
BMC Genomics20089:442
https://doi.org/10.1186/1471-2164-9-442
© Brown et al; licensee BioMed Central Ltd. 2008
Received: 19 June 2008
Accepted: 24 September 2008
Published: 24 September 2008
Abstract
Background
The ribosome biogenesis (RiBi) genes encode a highly-conserved eukaryotic set of nucleolar proteins involved in rRNA transcription, assembly, processing, and export from the nucleus. While the mode of regulation of this suite of genes has been studied in the yeast, Saccharomyces cerevisiae, how this gene set is coordinately regulated in the larger and more complex metazoan genomes is not understood.
Results
Here we present genome-wide analyses indicating that a distinct mode of RiBi regulation co-evolved with the E(CG)-binding, Myc:Max bHLH heterodimer complex in a stem-holozoan, the ancestor of both Metazoa and Choanoflagellata, the protozoan group most closely related to animals. These results show that this mode of regulation, characterized by an E(CG)-bearing core-promoter, is specific to almost all of the known genes involved in ribosome biogenesis in these genomes. Interestingly, this holozoan RiBi promoter signature is absent in nematode genomes, which have not only secondarily lost Myc but are marked by invariant cell lineages typically producing small body plans of 1000 somatic cells. Furthermore, a detailed analysis of 10 fungal genomes shows that this holozoan signature in RiBi genes is not found in hemiascomycete fungi, which evolved their own unique regulatory signature for the RiBi regulon.
Conclusion
These results indicate that a Myc regulon, which is activated in proliferating cells during normal development as well as during tumor progression, has primordial roots in the evolution of an inducible growth regime in a protozoan ancestor of animals. Furthermore, by comparing divergent bHLH repertoires, we conclude that regulation by Myc but not by other bHLH genes is responsible for the evolutionary maintenance of E(CG) sites across the RiBi suite of genes.
Asgard Archaea
Odinarchaeota
Lokiarchaeota
Thorarchaeota
Heimdallarchaeota
Eukaryota
Sections[edit]
Shortcuts:
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WP:MEDSECTIONS
The following lists of suggested sections are intended to help structure a new article or when an existing article requires a substantial rewrite. Changing an established article simply to fit these guidelines might not be welcomed by other editors. The given order of sections is also encouraged but may be varied, particularly if that helps your article progressively develop concepts and avoid repetition. Do not discourage potential readers by placing a highly technical section near the start of your article.
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Diseases or disorders or syndromes[edit]
'Clinical articles can achieve a level of consistency by limiting their top-level headers to those specified below. However, the spectrum of medical conditions is huge, including infectious and genetic diseases, chronic and acute illness, the life-threatening and the inconvenient. Some sections will necessarily be absent or may be better merged, especially if the article is not (yet) fully comprehensive.
A disease that is now only of historical significance may benefit from having its History section moved towards the top. Establishing the forms of the disease (Classification) can be an important first section. However, if such classification depends heavily on understanding the cause, pathogenesis or symptoms, then that section may be better moved to later in the article. If a disease is incurable, then the Prognosis section can be moved up, and a section called Management is more appropriate than Treatment.
The following list of suggested headings contains wikilinks; the actual headings should not.
Classification: If relevant. May also be placed as a subheading of diagnosis
Signs and symptoms or Characteristics (subsection complications)
Causes: Includes Risk factors, triggers, Genetics or genome, Virology (e.g., structure/morphology and replication).
Mechanism: For information about pathogenesis and pathophysiology.
Diagnosis: Includes characteristic biopsy findings and differential diagnosis.
Prevention or Screening (if the section only discusses secondary prevention it should follow the treatment section)
Treatment: This might include any type of currently used treatment, such as diet, exercise, medication, palliative care, physical therapy, psychotherapy, self care, surgery, watchful waiting, and many other possibilities. Consider discussing treatments in a plausible order in which they might be tried, or discussing the most common treatments first. Avoid experimental/speculative treatments and preventive measures (e.g., prophylactic vaccines or infection-avoidance techniques). As per the policy of WP:NOTHOW, Wikipedia articles should not be written in a "how-to" style, but this does not prevent adding official guidelines of treatments or managements if these can be presented in an objective manner and with medically reliable sources.
Outcomes or Prognosis. May also be labeled "Possible outcomes" or "Outlook".
Epidemiology: factors such as incidence, prevalence, age distribution, and sex ratio.
History: Early discoveries, historical figures, and outdated treatments (not patient history)
Society and culture: This might include social perceptions, cultural history, stigma, economics, religious aspects, awareness, legal issues, notable cases
Research directions: Include only if addressed by significant sources. See Trivia, and avoid useless statements like "More research is needed". Wikipedia is not a directory of clinical trials or researchers.
Special populations, such as Geriatrics or Pregnancy or Children
Other animals
Drugs, treatments, and devices[edit]
See also: Wikipedia:WikiProject Pharmacology/Style guide
The lead should highlight the name of the treatment product as per normal guidelines.
In the case of drugs, this would include the International Nonproprietary Name, while the BAN or USAN variant may also be mentioned with title words in bold. The initial brand name(s) and manufacturer follows, in parentheses. Indicate the drug class and family and the main indications. The External links section is a magnet for online pharmacy spam and should be avoided if possible.
Try to avoid cloning drug formularies such as the BNF and online resources like RxList and Drugs.com. Extract the pertinent information rather than just dumping low-level facts in a big list, which should be avoided per WP:NOTMANUAL and Wikipedia:LAUNDRYLIST. For example, a long list of side effects is largely useless without some idea of which are common or serious. It can be illuminating to compare the drug with others in its class, or with older and newer drugs. Do not include dose or titration information except when they are extensively discussed by secondary sources, necessary for the discussion in the article, or when listing equivalent doses between different pharmaceuticals. Wikipedia is not an instruction manual or textbook and should not include instructions, advice (legal, medical or otherwise) or "how-to"s; see WP:NOT#HOWTO, and the Wikipedia:Medical disclaimer.
The following list of suggested headings contains wikilinks; the actual headings should not.
Medical uses (how the intervention is used, along with evaluations of efficacy if available)
Contraindications
Adverse effects or Side effects (may include "addiction", "dependence", or "withdrawal")
Overdose (including toxicity; may include "addiction", "dependence", or "withdrawal" here if these are caused by overdose)
Interactions
Pharmacology
Mechanism of action or Pharmacodynamics
Pharmacokinetics (cover absorption, distribution, metabolism and excretion)
Chemistry (for drugs)
Synthesis Content should be encyclopedic and not violate WP:NOTHOWTO, with content and a source explaining the relevance of the synthesis information provided (the first, the one used to manufacture the drug, etc.).
Detection in body fluids
Manufacturing
History
Society and culture
Legal status
Recreational use
Economics
Brand names
Research
Veterinary use or other animals
Surgeries and procedures[edit]
Medical uses
Contra-indications
Risks/Complications
Technique (avoid step-by-step instructions)
Recovery or Rehabilitation
History (e.g., when it was invented)
Society and culture (includes legal issues, if any)
Special populations
Other animals
Signs or symptoms[edit]
Most articles about medical signs and symptoms should follow the below recommended structure. Omit sections that your sources do not address and combine sections when this seems sensible. For example, the definition of some signs is amply covered by an explanation of the mechanism, so having a section dedicated to the definition would be redundant.
Definition (current definitions)
Differential diagnoses or Associated medical conditions
Pathophysiology or Mechanism
Diagnostic approach or Evaluation
Treatment or Management (for the symptom itself, if any: e.g., analgesics for pain)
Epidemiology (incidence, prevalence, risk factors)
History (of the science, not of the patient: e.g., "The oldest surviving description is in a medical text written by Avicenna.")
Society and culture (e.g., cachexia was a literary symbol for tuberculosis in the 19th century and for AIDS in the 1980s.)
Research (Is anything important being done?)
Other animals
Medical tests[edit]
Articles about diagnostic tests or other medical tests may follow this suggested order. Many articles will only need some of these sections. This might also be a useful model for certain procedures.
While a general description of procedures may have encyclopedic value, articles about tests and other medical procedures should not provide step-by-step directions, patient instructions, disclaimers or warnings. Wikipedia is not an instruction manual and does not give medical advice.
Types, if more than one kind or variant of the test or procedure exists
Medical uses, including approved indications, non-approved indications (also called off-label uses), and contraindications
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Adverse effects
Procedure
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Legal issues, such as whether special counseling is mandated, if any
History of the test
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Veterinary use
Anatomy[edit]
Structure including a brief description of location and size, course, insertions and attachments. Possible subsections for blood supply, lymphatic drainage and innervation if these are complex enough. There is no need to duplicate information provided in the infobox. If covered on the same page, subsections may be devoted to individual substructures.
Variations, describing variations, if appropriate
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Histology, where appropriate
Function or Physiology as appropriate
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Society and culture, which may be excluded in minor anatomical structures.
History, describing the structure and the etymology of the word. Etymology may be included as a separate subsection, if sufficient information exists.
Other animals, which may include comparative anatomy for discussing non-human anatomy in articles that are predominantly human-based.
Additional images may be used to display high-quality images, preferably in a gallery format. Each image must help the reader understand the subject and should provide something unique.
Do not add images: just because they are pretty; that are too similar to existing images; or several images of the same thing in different levels of zoom—assume instead that readers can use the gallery tool or click to see the image/more images on Commons. The
Wikimedia Commons has media related to
IiKkEe.
link may be included in this section.
Additionally:
The lead should begin by stating in the most general form the location and purpose of the structure. For example, "The metatarsals are bones found in the human foot."
A link to the Commons image category for images may be provided in the "See also" section. If article makes use of anatomical terminology, please add
or
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This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)
as the first link in the section relating to references.
Medical specialties[edit]
Scope including typical diseases/medical conditions; include any important sub-specialties
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Treatments
Training may be subdivided by country if necessary
Ethical and medicolegal issues any ethical issues that are specific to this field
This list of sections deliberately does not include: lists of professional organizations, training programs, publications, and companies working in the field.
ANP Pathogenesis
- Deming|Deming 1940, p. 704–715]]
More recent examples of authors who treat Cu, Ag and Au as post-transition metals include Subba Rao & Shafer;[5] Collings;[6] and Temkin.[7]