Search results
Results From The WOW.Com Content Network
Some Hydra species, like Hydra circumcincta and Hydra viridissima, are hermaphrodites [12] and may produce both testes and ovaries at the same time. Many members of the Hydrozoa go through a body change from a polyp to an adult form called a medusa , which is usually the life stage where sexual reproduction occurs, but Hydra do not progress ...
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 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
All hydra cells continually divide. [15] It has been suggested that hydras do not undergo senescence, and, as such, are biologically immortal. In a four-year study, 3 cohorts of hydra did not show an increase in mortality with age. It is possible that these animals live much longer, considering that they reach maturity in 5 to 10 days. [16]
Hydra rotates relatively quickly compared to the rest of Pluto's moons, which all have rotation periods greater than one day. [9] This rapid rotation of Hydra is common among the rotation periods of most Kuiper belt objects. [9] Hydra's surface material could get ejected due to centrifugal forces if it were rotating at a faster rate. [30] [32]
[147] [149] When precession is accounted for, the orbital periods of Styx, Nix, and Hydra are in an exact 18:22:33 ratio. [147] There is a sequence of approximate ratios, 3:4:5:6, between the periods of Styx, Nix, Kerberos, and Hydra with that of Charon; the ratios become closer to being exact the further out the moons are. [147] [150]
How long does it take to run a marathon? ... “Overall, the average time to finish a marathon is 4:30,” says Pohlad. She adds that women average 4:45, and men average 4:20. ... “At the end of ...
When a hydra is cut in half, the head portion can regenerate and form a new foot with the basal disc, and the foot portion can regenerate and form a new head with the hypostome region. If a hydra was severed into smaller pieces, the middle pieces would still form a head and foot at the appropriate regions of the hydra.