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The nervous system of Hydra is a nerve net, which is structurally simple compared to more derived animal nervous systems. Hydra does not have a recognizable brain or true muscles. Nerve nets connect sensory photoreceptors and touch-sensitive nerve cells located in the body wall and tentacles. The structure of the nerve net has two levels:
The Hydra, a fictional deity created by Henry Kuttner. Mother Hydra, the co-ruler of the Deep One race in the Cthulhu Mythos; The Hydra, a fictional fighter jet in Grand Theft Auto: San Andreas and Grand Theft Auto Online; The Hydra, a fictional machine in Kirby Air Ride; Hydra, a boss enemy in the video game Prototype 2
The term's origins are found in its two syllables: Latin (archia) or the Greek ἄρχειν (archein) meaning “the rule of" [2] and the Ancient Greek ῠ̔́δρη (húdrē) Ionic or hīdrə (hudra) meaning "water snake," as defined by the Oxford English Dictionary. [3] Hydra, also applies the Greek mythological sea monster representation ...
Hydra oligactis. This species can reproduce in three ways: sexual reproduction, budding, and indirectly through regeneration. [11] When hydra reproduce sexually, simple testes, ovaries, or both will develop on the bodies of an individual. Sperm released into the environment by the testes enters the egg within the ovary.
The Lernaean Hydra or Hydra of Lerna (Ancient Greek: Λερναῖα ὕδρα, romanized: Lernaîa Húdrā), more often known simply as the Hydra, is a serpentine lake monster in Greek mythology and Roman mythology. Its lair was the lake of Lerna in the Argolid, which was also the site of the myth of the Danaïdes.
Latin America and the Caribbean-extending from The Bahamas and Mexico to Argentina and Chile. Central America—the countries south of Mexico and north of Colombia. The Caribbean. South America—all the countries south of Panama. Within this scheme, the continent of America includes Northern America, Central America, the Caribbean and South ...
The term "Latin America" is defined to mean parts of Americas south of the mainland of the United States of America where a Romance language (a language derived from Latin) predominates. Latin America are the countries and territories in the Americas which speak Spanish or Portuguese, with French being sometimes included.
Linguistic map of Latin America. Spanish in green, Portuguese in orange, and French in blue. Spanish and Portuguese are the predominant languages of Latin America. Spanish is the official language of most of the countries on the Latin American mainland, as well as in Puerto Rico (where it is co-official with English), Cuba and the Dominican ...