Name: Let's Begin ! . . . .
Uploaded: 2021-10-21
Duration: 3 min 2 s
Description: Let’s Begin ! . . . .. By : Mary Margaret L. Talaguit.

Let’s Begin ! . . . .. By : Mary Margaret L. Talaguit. 

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What is Extinction ??. Extinction is the termination of a kind of organism or of a group of kinds, usually a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and recover may have been lost before this point.. 

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Extinction is the termination of a kind of organism or of a group of kinds, usually a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and recover may have been lost before this point.

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Sabre toothed cat. A saber-toothed cat or saber-tooth is any member of various extinct groups of predatory mammals, predominantly carnivorans , that are characterized by long, curved saber-shaped canine teeth which protruded from the mouth when closed .. 

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A saber-toothed cat or saber-tooth is any member of various extinct groups of predatory mammals, predominantly  carnivorans , that are characterized by long, curved saber-shaped canine teeth which protruded from the mouth when closed .

any  of the extinct catlike carnivores belonging to either the extinct family  Nimravidae  or the subfamily  Machairodontinae  of the cat family ( Felidae ).  Named for the pair of elongated bladelike canine  teeth  in their upper  jaw,  they are often called  sabre -toothed tigers or  sabre -toothed lions, although the modern  lion  and  tiger   are true cats of the subfamily  Felinae .

West African Black Rhinoceros. The western black rhinoceros was believed to have been genetically different from other rhino subspecies.. 

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The western black rhinoceros or West African black rhinoceros is an extinct subspecies of the black rhinoceros. It was declared extinct by the IUCN in 2011.

The western black rhinoceros was believed to have been genetically different from other rhino subspecies.

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Rhizanthella gardneri. Rhizanthella gardneri , commonly known as western underground orchid, is a species of flowering plant in the orchid family and is endemic to the southwest of Western Australia.. 

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Rhizanthella   gardneri , commonly known as western underground orchid, is a species of flowering plant in the orchid family and is endemic to the southwest of Western Australia.

It is a herb that spends its entire life cycle, including flowering, at or below the soil surface

Rafflesia tuan-mudae. Rafflesia tuan-mudae is a member of the Rafflesiaceae family. It lives as a parasite within the Tetrastigma vine. The enormous flowers may reach over 1 m in diameter.. 

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Rafflesia   tuan-mudae  is a member of the  Rafflesiaceae  family. It lives as a parasite within the  Tetrastigma  vine. The enormous flowers may reach over 1 m in diameter.

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Smallpox virus. Microorganism : Smallpox virus ( orthopoxvirus. 

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Smallpox virus.  Microorganism :  Smallpox  virus  ( orthopoxvirus

Smallpox is  caused by  variola  virus , genus  Orthopoxvirus . Other members of this genus that can infect humans are  vaccinia  virus,  monkeypox  virus, and cowpox virus. In 1980, the World Health Organization officially declared the worldwide eradication of smallpox.

Leprosy bacterium. Hansen's disease (also known as leprosy) is an infection caused by slow-growing bacteria called Mycobacterium leprae . It can affect the nerves, skin, eyes, and lining of the nose (nasal mucosa).. 

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Hansen's disease (also known as leprosy) is an infection caused by slow-growing bacteria called  Mycobacterium  leprae . It can affect the nerves, skin, eyes, and lining of the nose (nasal mucosa).