Como es el movimiento de las medusas?
¿Cómo es el movimiento de las medusas?
Las medusas, también denominadas popularmente como aguamalas o aguasvivas, son animales pelágicos (de mar abierto) y aunque pueden propulsarse gracias a movimientos rítmicos de su umbrela, se mueven básicamente arrastrados por las corrientes marinas.
¿Cuál es la locomocion de las medusas?
Para desplazarse por el agua se impulsan por contracciones rítmicas de todo su cuerpo; toman agua, que se introduce en su cavidad gastrovascular, y la expulsan usándola como «propulsor». El concepto de medusa es tanto taxonómico como morfológico.
¿Cuál es el hábitat de las medusas?
Tal y como se ha mencionado anteriormente, las medusas están presentes en todos los océanos mundiales. Las hay que viven en aguas árticas muy frías y las que lo hacen en mares muy cálidos. Por lo general, son más abundantes en aguas cálidas, en zonas tropicales.
¿Cómo se reproducen las medusas para niños?
Las medusas nacen por gemación o estrobilación de los pólipos y tienen sexos separados. Una vez alcanzan la madurez sexual y emiten sus gámetos, muchas medusas mueren, mientras que la larva generada por la fecundación de los gámetos de ambos sexos se desplaza al fondo marino donde se transforma en pólipo.
Is Medusa an animal?
medusa, in zoology, one of two principal body types occurring in members of the invertebrate animal phylum Cnidaria. It is the typical form of the jellyfish. The medusoid body is bell- or umbrella-shaped.
Is medusa a goddess?
Legend states that Medusa was once a beautiful, avowed priestess of Athena who was cursed for breaking her vow of celibacy. She is not considered a goddess or Olympian, but some variations on her legend say she consorted with one. When Medusa had an affair with the sea god Poseidon, Athena punished her.
Why is jellyfish called medusa?
Jellyfish have a complex life cycle; the medusa is normally the sexual phase, which produces planula larva that disperse widely and enter a sedentary polyp phase before reaching sexual maturity….
| Jellyfish | |
|---|---|
| Phylum: | Cnidaria |
| Subphylum: | Medusozoa |
| Groups included |
Is Medusa a goddess or monster?
Medusa, in Greek mythology, the most famous of the monster figures known as Gorgons. She was usually represented as a winged female creature having a head of hair consisting of snakes; unlike the Gorgons, she was sometimes represented as very beautiful.
What is a medusa in jellyfish?
Medusa, in zoology, one of two principal body types occurring in members of the invertebrate animal phylum Cnidaria. It is the typical form of the jellyfish. The medusa is a free-swimming form; it moves by rhythmic muscular contractions of the bell, providing a slow propulsive action against the water.
What is the difference between Medusa and jellyfish?
In context|zoology|lang=en terms the difference between medusa and jellyfish. is that medusa is (zoology) special form that cnidarians may turn into while jellyfish is (zoology) almost transparent aquatic being; any one of the acalephs, especially one of the larger species, having a jellylike appearance.
What is Medusa the goddess of?
Medusa represents philosophy, beauty and art. The Medusa head is part of fashion designer Gianni Versace’s symbol. Perseus the hero slayed Medusa, the only mortal of the Gorgon sisters, by viewing her in the reflection of the mirrored shield of Athena. Perseus then beheaded her.