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pada 5 maret 2020, komando riset medis dan pasokan angkatan darat amerika serikat di fort detrick dan institut riset angkatan darat walter reed di silver spring, keduanya di maryland barat, mengumumkan bahwa mereka sedang mengembangkan vaksin.
on 5 march 2020, the united states army medical research and materiel command at fort detrick and the walter reed army institute of research in silver spring, both in western maryland, announced they were working on a vaccine.
Dernière mise à jour : 2020-08-25
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goldfish are freshwater fish in the cyprinidae family of the cypriniformes order. this fish is usually kept as a pet in indoor aquariums, and is one of the most popular aquarium fish. this fish with the scientific name carassius auratus has many types, including the ryukin goldfish, black moor goldfish, celestial goldfish, lion head goldfish, and the most widely known is the ranchu goldfish. ranchu is a type of hooded goldfish native to japan. it is called the 'king of carp' by the japanese. the habitat of the ranchu goldfish is fresh water with a slow, shallow, but clean flow. this fish can usually be found in lakes and rivers. even though they can breed in any season, goldfish are usually more active in spring, if they live in a country that has four seasons. ranchu goldfish generally have bright and attractive colors, such as a combination of orange and white. this fish has a round and short body shape. they also have a short tail and two fins that are used for locomotion. the head of this fish tends to be small with a slightly raised mouth. this fish also has large, protruding eyes that tend to be rounded. the scales of this fish tend to be large and shiny. usually this type of goldfish has a body size ranging from 5 to 10 cm. ranchu goldfish food generally consists of special goldfish pellets. these fish require good care in an aquarium that has an efficient filtration system and regular water changes.
Dernière mise à jour : 2024-03-04
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