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Leech

Index Leech

Leeches are segmented parasitic or predatory worm-like animals that belong to the phylum Annelida and comprise the subclass Hirudinea. [1]

116 relations: Acanthobdella peledina, Acetabulum (morphology), Aeromonas, Ambush predator, American Museum of Natural History, Amino acid, Amylase, Anaphylaxis, Ancient Greece, Ancient Rome, Anesthetic, Annelid, Annulus (zoology), Anticoagulant, Arhynchobdellida, Australian Museum, Ayurveda, Blood, Bloodletting, Book of Proverbs, Branchiobdellida, Cambarus, Chloragogen cell, Chromatophore, Class (biology), Cleaning symbiosis, Clitellata, Clitellum, Coelom, Crayfish, Crop (anatomy), Cytochrome c oxidase, Dermis, Digestive enzyme, Earthworm, Endopeptidase, Endosymbiont, Erpobdella punctata, Erpobdelliformes, Euhirudinea, Excretion, Exopeptidase, François-Joseph-Victor Broussais, Fresh water, Ganglion, Gastrointestinal tract, Geometer moth, Gill, Glossiphoniidae, Gonopore, ..., Gout, Grasshopper, Haemadipsidae, Havell family, Helobdella, Hematophagy, Hemibdella soleae, Hemoglobin, Hermaphrodite, Hippocratic Corpus, Hirudin, Hirudiniformes, Hirudo medicinalis, Host (biology), Humorism, Hydrobiologia, Jean Ignace Isidore Gérard Grandville, Jean-Baptiste Lamarck, Journal of Medical Microbiology, Klebsiella, Lipase, Lumbriculidae, Microsurgery, Mitochondrion, Model organism, Monomer, Morphine, Natural History (Pliny), Nervous tissue, Neuron, Old English, Oligochaeta, Ovary, Paraphyly, Parasitism, Peptide, Peristalsis, Pharynx, Phylogenetic tree, Pigment spot ocellus, Piscicolidae, Pliny the Elder, Polychaete, Predation, Proboscis, Protease, Protein, Pseudomonas, Recombinant DNA, Resolution and Independence, Rhynchobdellida, Rikenellaceae, Romney Marsh, Royal Institution, Segmentation (biology), Sequential hermaphroditism, Sex organ, Simple eye in invertebrates, Species, Sycophant, Symbiosis, Testicle, The Costume of Yorkshire, The Times, White blood cell, William Wordsworth. Expand index (66 more) »

Acanthobdella peledina

Acanthobdella peledina is a species of leech in the infraclass Acanthobdellidea.

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Acetabulum (morphology)

Acetabulum (plural acetabula) in invertebrate zoology is a saucer-shaped organ of attachment in some annelid worms (like leech) and flatworms.

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Aeromonas

Aeromonas is a genus of Gram-negative, facultative anaerobic, rod-shaped bacteria that morphologically resemble members of the family Enterobacteriaceae.

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Ambush predator

Ambush predators or sit-and-wait predators are carnivorous animals or other organisms, such as some nematophagous fungi and carnivorous plants, that capture or trap prey by stealth or by strategy (typically not conscious strategy), rather than by speed or by strength.

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American Museum of Natural History

The American Museum of Natural History (abbreviated as AMNH), located on the Upper West Side of Manhattan, New York City, is one of the largest museums in the world.

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Amino acid

Amino acids are organic compounds containing amine (-NH2) and carboxyl (-COOH) functional groups, along with a side chain (R group) specific to each amino acid.

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Amylase

An amylase is an enzyme that catalyses the hydrolysis of starch into sugars.

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Anaphylaxis

Anaphylaxis is a serious allergic reaction that is rapid in onset and may cause death.

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Ancient Greece

Ancient Greece was a civilization belonging to a period of Greek history from the Greek Dark Ages of the 13th–9th centuries BC to the end of antiquity (AD 600).

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Ancient Rome

In historiography, ancient Rome is Roman civilization from the founding of the city of Rome in the 8th century BC to the collapse of the Western Roman Empire in the 5th century AD, encompassing the Roman Kingdom, Roman Republic and Roman Empire until the fall of the western empire.

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Anesthetic

An anesthetic (or anaesthetic) is a drug to prevent pain during surgery, completely blocking any feeling as opposed to an analgesic.

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Annelid

The annelids (Annelida, from Latin anellus, "little ring"), also known as the ringed worms or segmented worms, are a large phylum, with over 22,000 extant species including ragworms, earthworms, and leeches.

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Annulus (zoology)

In zoology, an annulus is an external circular ring.

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Anticoagulant

Anticoagulants, commonly referred to as blood thinners, are chemical substances that prevent or reduce coagulation of blood, prolonging the clotting time.

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Arhynchobdellida

The proboscisless leeches, Arhynchobdellida, are classified as an order of the Hirudinea.

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Australian Museum

The Australian Museum is the oldest museum in Australia, with an international reputation in the fields of natural history and anthropology.

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Ayurveda

Ayurveda is a system of medicine with historical roots in the Indian subcontinent.

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Blood

Blood is a body fluid in humans and other animals that delivers necessary substances such as nutrients and oxygen to the cells and transports metabolic waste products away from those same cells.

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Bloodletting

Bloodletting (or blood-letting) is the withdrawal of blood from a patient to prevent or cure illness and disease.

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Book of Proverbs

The Book of Proverbs (Hebrew: מִשְלֵי, Míshlê (Shlomoh), "Proverbs (of Solomon)") is the second book of the third section (called Writings) of the Hebrew Bible and a book of the Christian Old Testament.

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Branchiobdellida

Branchiobdellida are an order of leech-like clitellates that are mostly exoparasites of crayfish.

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Cambarus

Cambarus is a large and diverse genus of North American crayfish.

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Chloragogen cell

Chloragogen cells, also called as y cells, are cells in annelids that function similarly to the liver in vertebrates.

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Chromatophore

Chromatophores are pigment-containing and light-reflecting cells, or groups of cells, found in a wide range of animals including amphibians, fish, reptiles, crustaceans and cephalopods.

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Class (biology)

In biological classification, class (classis) is a taxonomic rank, as well as a taxonomic unit, a taxon, in that rank.

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Cleaning symbiosis

Cleaning symbiosis is a mutually beneficial association between individuals of two species, where one (the cleaner) removes and eats parasites and other materials from the surface of the other (the client).

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Clitellata

The Clitellata are a class of annelid worms, characterized by having a clitellum - the 'collar' that forms a reproductive cocoon during part of their life cycles.

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Clitellum

The clitellum is a thickened glandular and non-segmented section of the body wall near the head in earthworms and leeches, that secretes a viscid sac in which the eggs are deposited.

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Coelom

The coelom is the main body cavity in most animals and is positioned inside the body to surround and contain the digestive tract and other organs.

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Crayfish

Crayfish, also known as crawfish, crawdads, crawldads, freshwater lobsters, mountain lobsters, mudbugs or yabbies, are freshwater crustaceans resembling small lobsters, to which they are related; taxonomically, they are members of the superfamilies Astacoidea and Parastacoidea.

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Crop (anatomy)

A crop (sometimes also called a croup or a craw, or ingluvies) is a thin-walled expanded portion of the alimentary tract used for the storage of food prior to digestion.

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Cytochrome c oxidase

The enzyme cytochrome c oxidase or Complex IV, is a large transmembrane protein complex found in bacteria, archaea, and in eukaryotes in their mitochondria.

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Dermis

The dermis or corium is a layer of skin between the epidermis (with which it makes up the cutis) and subcutaneous tissues, that primarily consists of dense irregular connective tissue and cushions the body from stress and strain.

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Digestive enzyme

Digestive enzymes are a group of enzymes that break down polymeric macromolecules into their smaller building blocks, in order to facilitate their absorption by the body.

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Earthworm

An earthworm is a tube-shaped, segmented worm found in the phylum Annelida.

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Endopeptidase

Endopeptidase or endoproteinase are proteolytic peptidases that break peptide bonds of nonterminal amino acids (i.e. within the molecule), in contrast to exopeptidases, which break peptide bonds from end-pieces of terminal amino acids.

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Endosymbiont

An endosymbiont or endobiont is any organism that lives within the body or cells of another organism in a symbiotic relationship with the host body or cell, often but not always to mutual benefit.

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Erpobdella punctata

Erpobdella punctata is a leech in the family Erpobdellidae.

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Erpobdelliformes

The Erpobdelliformes are one of the currently-accepted suborders of the proboscisless leeches (Arhynchobdellida).

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Euhirudinea

Euhirudinea, the true leeches, are an infraclass of the Hirudinea.

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Excretion

Excretion is the process by which metabolic waste is eliminated from an organism.

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Exopeptidase

An exopeptidase is any peptidase that catalyzes the cleavage of the terminal (or the penultimate) peptide bond; the process releases a single amino acid or dipeptide from the peptide chain.

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François-Joseph-Victor Broussais

François-Joseph-Victor Broussais (17 December 1772, St Malo – 17 November 1838, Vitry-sur-Seine) was a French physician.

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Fresh water

Fresh water (or freshwater) is any naturally occurring water except seawater and brackish water.

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Ganglion

A ganglion is a nerve cell cluster or a group of nerve cell bodies located in the autonomic nervous system and sensory system.

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Gastrointestinal tract

The gastrointestinal tract (digestive tract, digestional tract, GI tract, GIT, gut, or alimentary canal) is an organ system within humans and other animals which takes in food, digests it to extract and absorb energy and nutrients, and expels the remaining waste as feces.

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Geometer moth

The geometer moths are moths belonging to the family Geometridae of the insect order Lepidoptera, the moths and butterflies.

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Gill

A gill is a respiratory organ found in many aquatic organisms that extracts dissolved oxygen from water and excretes carbon dioxide.

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Glossiphoniidae

Glossiphoniidae are the family called freshwater jawless leeches or glossiphoniids.

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Gonopore

A gonopore, sometimes called a gonadopore, is a genital pore in many invertebrates.

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Gout

Gout is a form of inflammatory arthritis characterized by recurrent attacks of a red, tender, hot, and swollen joint.

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Grasshopper

Grasshoppers are insects of the suborder Caelifera within the order Orthoptera, which includes crickets and their allies in the other suborder Ensifera.

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Haemadipsidae

Haemadipsidae (From Latin "haima" and "dipsa" ("blood" and "thirst", respectively))Google Translate - September 2013 are a family of "jawed leeches".

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Havell family

The Havell family of Reading, Berkshire, England, included a number of notable engravers, etchers and painters, as well as writers, publishers, educators, and musicians.

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Helobdella

Helobdella is a genus of leeches in the family Glossiphoniidae, the freshwater jawless leeches.

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Hematophagy

Hematophagy (sometimes spelled haematophagy or hematophagia) is the practice by certain animals of feeding on blood (from the Greek words αἷμα haima "blood" and φάγειν phagein "to eat").

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Hemibdella soleae

Hemibdella soleae is a marine species of leech in the family Piscicolidae and the type taxon of its genus.

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Hemoglobin

Hemoglobin (American) or haemoglobin (British); abbreviated Hb or Hgb, is the iron-containing oxygen-transport metalloprotein in the red blood cells of all vertebrates (with the exception of the fish family Channichthyidae) as well as the tissues of some invertebrates.

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Hermaphrodite

In biology, a hermaphrodite is an organism that has complete or partial reproductive organs and produces gametes normally associated with both male and female sexes.

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Hippocratic Corpus

The Hippocratic Corpus (Latin: Corpus Hippocraticum), or Hippocratic Collection, is a collection of around 60 early Ancient Greek medical works strongly associated with the physician Hippocrates and his teachings.

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Hirudin

Hirudin is a naturally occurring peptide in the salivary glands of blood-sucking leeches (such as Hirudo medicinalis) that has a blood anticoagulant property.

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Hirudiniformes

The Hirudiniformes are one of the currently-accepted suborders of the proboscisless leeches (Arhynchobdellida).

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Hirudo medicinalis

Hirudo medicinalis, the European medicinal leech, is one of several species of leeches used as "medicinal leeches".

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Host (biology)

In biology and medicine, a host is an organism that harbours a parasitic, a mutualistic, or a commensalist guest (symbiont), the guest typically being provided with nourishment and shelter.

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Humorism

Humorism, or humoralism, was a system of medicine detailing the makeup and workings of the human body, adopted by Ancient Greek and Roman physicians and philosophers, positing that an excess or deficiency of any of four distinct bodily fluids in a person—known as humors or humours—directly influences their temperament and health.

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Hydrobiologia

Hydrobiologia: The International Journal of Aquatic Sciences is a scientific journal specialising in hydrobiology, including limnology and oceanography, systematics of aquatic organisms and aquatic ecology.

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Jean Ignace Isidore Gérard Grandville

Jean Ignace Isidore Gérard (13 September 1803, Nancy, Meurthe-et-Moselle – 17 March 1847, Vanves), generally known by the pseudonym of Jean-Jacques or J. J. Grandville, was a French caricaturist.

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Jean-Baptiste Lamarck

Jean-Baptiste Pierre Antoine de Monet, Chevalier de Lamarck (1 August 1744 – 18 December 1829), often known simply as Lamarck, was a French naturalist.

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Journal of Medical Microbiology

The Journal of Medical Microbiology is a peer-reviewed academic journal that covers microbiological research relevant to human and animal disease.

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Klebsiella

Klebsiella is a genus of nonmotile, Gram-negative, oxidase-negative, rod-shaped bacteria with a prominent polysaccharide-based capsule.

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Lipase

A lipase is any enzyme that catalyzes the hydrolysis of fats (lipids).

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Lumbriculidae

The Lumbriculidae are a family of microdrile oligochaetes common in freshwater environments, including streams, lakes, marshes, wells and groundwater.

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Microsurgery

Microsurgery is a general term for surgery requiring an operating microscope.

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Mitochondrion

The mitochondrion (plural mitochondria) is a double-membrane-bound organelle found in most eukaryotic organisms.

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Model organism

A model organism is a non-human species that is extensively studied to understand particular biological phenomena, with the expectation that discoveries made in the organism model will provide insight into the workings of other organisms.

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Monomer

A monomer (mono-, "one" + -mer, "part") is a molecule that "can undergo polymerization thereby contributing constitutional units to the essential structure of a macromolecule".

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Morphine

Morphine is a pain medication of the opiate variety which is found naturally in a number of plants and animals.

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Natural History (Pliny)

The Natural History (Naturalis Historia) is a book about the whole of the natural world in Latin by Pliny the Elder, a Roman author and naval commander who died in 79 AD.

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Nervous tissue

Nervous tissue or nerve tissue is the main tissue component of the two parts of the nervous system; the brain and spinal cord of the central nervous system (CNS), and the branching peripheral nerves of the peripheral nervous system (PNS), which regulates and controls bodily functions and activity.

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Neuron

A neuron, also known as a neurone (British spelling) and nerve cell, is an electrically excitable cell that receives, processes, and transmits information through electrical and chemical signals.

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Old English

Old English (Ænglisc, Anglisc, Englisc), or Anglo-Saxon, is the earliest historical form of the English language, spoken in England and southern and eastern Scotland in the early Middle Ages.

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Oligochaeta

Oligochaeta is a subclass of animals in the phylum Annelida, which is made up of many types of aquatic and terrestrial worms, including all of the various earthworms.

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Ovary

The ovary is an organ found in the female reproductive system that produces an ovum.

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Paraphyly

In taxonomy, a group is paraphyletic if it consists of the group's last common ancestor and all descendants of that ancestor excluding a few—typically only one or two—monophyletic subgroups.

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Parasitism

In evolutionary biology, parasitism is a relationship between species, where one organism, the parasite, lives on or in another organism, the host, causing it some harm, and is adapted structurally to this way of life.

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Peptide

Peptides (from Gr.: πεπτός, peptós "digested"; derived from πέσσειν, péssein "to digest") are short chains of amino acid monomers linked by peptide (amide) bonds.

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Peristalsis

Peristalsis is a radially symmetrical contraction and relaxation of muscles that propagates in a wave down a tube, in an anterograde direction.

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Pharynx

The pharynx (plural: pharynges) is the part of the throat that is behind the mouth and nasal cavity and above the esophagus and the larynx, or the tubes going down to the stomach and the lungs.

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Phylogenetic tree

A phylogenetic tree or evolutionary tree is a branching diagram or "tree" showing the evolutionary relationships among various biological species or other entities—their phylogeny—based upon similarities and differences in their physical or genetic characteristics.

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Pigment spot ocellus

The pigment spot ocellus is an ocellus that contains only part of its cells pigmented.

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Piscicolidae

The Piscicolidae are a family of jawless leeches in the order Rhynchobdellida that are parasitic on fish.

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Pliny the Elder

Pliny the Elder (born Gaius Plinius Secundus, AD 23–79) was a Roman author, naturalist and natural philosopher, a naval and army commander of the early Roman Empire, and friend of emperor Vespasian.

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Polychaete

The Polychaeta, also known as the bristle worms or polychaetes, are a paraphyletic class of annelid worms, generally marine.

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Predation

Predation is a biological interaction where a predator (a hunting animal) kills and eats its prey (the organism that is attacked).

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Proboscis

A proboscis is an elongated appendage from the head of an animal, either a vertebrate or an invertebrate.

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Protease

A protease (also called a peptidase or proteinase) is an enzyme that performs proteolysis: protein catabolism by hydrolysis of peptide bonds.

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Protein

Proteins are large biomolecules, or macromolecules, consisting of one or more long chains of amino acid residues.

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Pseudomonas

Pseudomonas is a genus of Gram-negative, Gammaproteobacteria, belonging to the family Pseudomonadaceae and containing 191 validly described species.

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Recombinant DNA

Recombinant DNA (rDNA) molecules are DNA molecules formed by laboratory methods of genetic recombination (such as molecular cloning) to bring together genetic material from multiple sources, creating sequences that would not otherwise be found in the genome.

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Resolution and Independence

"Resolution and Independence" is a lyric poem by the English romantic poet William Wordsworth, composed in 1802 and published in 1807 in Poems in Two Volumes.

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Rhynchobdellida

Rhynchobdellida, the jawless leeches, although paraphyletic, are classified as an order of the Hirudinea.

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Rikenellaceae

The family Rikenellaceae is composed of three genera of bacteria.

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Romney Marsh

Romney Marsh is a sparsely populated wetland area in the counties of Kent and East Sussex in the south-east of England.

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Royal Institution

The Royal Institution of Great Britain (often abbreviated as the Royal Institution or Ri) is an organisation devoted to scientific education and research, based in London.

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Segmentation (biology)

Segmentation in biology is the division of some animal and plant body plans into a series of repetitive segments.

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Sequential hermaphroditism

Sequential hermaphroditism (called dichogamy in botany) is a type of hermaphroditism that occurs in many fish, gastropods, and plants.

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Sex organ

A sex organ (or reproductive organ) is any part of an animal's body that is involved in sexual reproduction.

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Simple eye in invertebrates

A simple eye (sometimes called a pigment pit) refers to a type of eye form or optical arrangement that contains a single lens.

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Species

In biology, a species is the basic unit of classification and a taxonomic rank, as well as a unit of biodiversity, but it has proven difficult to find a satisfactory definition.

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Sycophant

Sycophant was a term used in the legal system of Classic Athens but in modern English it refers to someone practicing sycophancy i.e. obedient flattery.

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Symbiosis

Symbiosis (from Greek συμβίωσις "living together", from σύν "together" and βίωσις "living") is any type of a close and long-term biological interaction between two different biological organisms, be it mutualistic, commensalistic, or parasitic.

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Testicle

The testicle or testis is the male reproductive gland in all animals, including humans.

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The Costume of Yorkshire

The Costume of Yorkshire is an 1814 book by George Walker illustrating the various styles of dress worn by people of differing traditional professions in the county of Yorkshire in the 19th century.

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The Times

The Times is a British daily (Monday to Saturday) national newspaper based in London, England.

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White blood cell

White blood cells (WBCs), also called leukocytes or leucocytes, are the cells of the immune system that are involved in protecting the body against both infectious disease and foreign invaders.

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William Wordsworth

William Wordsworth (7 April 1770 – 23 April 1850) was a major English Romantic poet who, with Samuel Taylor Coleridge, helped to launch the Romantic Age in English literature with their joint publication Lyrical Ballads (1798).

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Bdellatomy, Carnivorous Leech, Carnivorous leech, External hirudiniasis, Hirudena, Hirudinea, Hirudiniasis, Hirudinida, Leech bite, Leech infestation, Leeches, Leeching (medical), Theromyzon.

References

[1] https://en.wikipedia.org/wiki/Leech

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