how do jellyfish reproduce?

Answer 1

Individual Jellyfish are either male or female. The eggs and sperm develop in special areas called Gonads inside the body wall. When all of the eggs and sperm are fully developed, they are released into the stomach and then through the mouth into the sea. Some of the eggs stick to the frilly mouth lips which surround the mouth of the Jellyfish. There they are fertilized by the sperm and continue to develop

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Answer 2

Individual Jellyfish are either male or female. The eggs and sperm develop in special areas called Gonads inside the body wall. The gonads are frequently very colorful and add greatly to the beauty of the living Jellyfish. When all of the eggs and sperm are fully developed, they are released into the stomach and then through the mouth into the sea. Some of the eggs stick to the frilly mouth lips which surround the mouth of the Jellyfish.

There they are fertilized by the sperm and continue to develop. As in all many-celled animals, the microscopic fertilized eggs begin a series of cell divisions which finally result in an embryo. However, the embryo does not develop directly into a baby jellyfish, but becomes a tiny, flattened creature called a Planula.

The Planula, which is covered with rapidly beating hairlike cilia, is able to swim and may be carried a considerable distance by ocean currents during it's short swimming period, lasting from a few hours to several days. The tiny Planula then makes its way toward the sea bottom where it actively looks for a suitable place to attach itself. At this point, a remarkable series of events take place.

The planula attaches to a rock, shell, pier pilling, or some hard underwater object and immediately begins to grow into a Polyp. The Polyp may continue to live for several years. During this time, it captures small shrimp-like organisms and other tiny marine animals for food. Furthermore, each Polyp produced from a Planula is able to reproduce new Polyps by a process called budding

Answer 3

The life cycle of a typical jellyfish involves an alteration of generations in which the animal passes through two different body forms.

The dominant and conspicuous Medusa is the familiar form, while the smaller polyp form is restricted to the larval stage.

Jellyfish are either male or female and reproduce sexually.

The reproductive organs (gonads) develop in the lining of the gut.

During reproduction, the male releases sperm through its mouth into the water column.

The sperm swims into the mouth of the female where fertilization occurs.

Early embryonic development begins either inside the female or in brood pouches along the oral arms.

Small swimming larvae (planula) leave the mouth or brood pouches and enter the water column.

The larvae then seek a shaded surface and attach to the bottom, forming polyps.

These polyps divide and bud into young jellyfish (ephyra).

In a few weeks, an ephyra will grow into an adult Medusa, thus completing the complex life cycle.

Jellyfish normally live three to six months.

Answer 4

Jellyfish reproduction involves several different stages. In the adult, or medusa, stage of a jellyfish, they can reproduce sexually by releasing sperm and eggs into the water, forming a planula. In this larval stage of jellyfish life, the planula hooks on to the bottom of a smooth rock or other structure and grows into another stage of jellyfish life, the polyp--which resembles a miniature sea anemone. During this stage, which can last for several months or years, asexual reproduction occurs. The polyps clone themselves and bud, or strobilate, into another stage of jellyfish life, called ephyra. It is this form that grows into the adult medusa jellyfish.

Answer 5

Jellyfish reproduction involves several different stages. In the adult, or medusa, stage of a jellyfish, they can reproduce sexually by releasing sperm and eggs into the water, forming a planula. In this larval stage of jellyfish life, the planula hooks on to the bottom of a smooth rock or other structure and grows into another stage of jellyfish life, the polyp--which resembles a miniature sea anemone. During this stage, which can last for several months or years, asexual reproduction occurs. The polyps clone themselves and bud, or strobilate, into another stage of jellyfish life, called ephyra. It is this form that grows into the adult medusa jellyfish.

Answer 6

They can reproduce by themselves. Asexually. How nice. One day they are floating merrily with other jellyfishes and then a thought come to them "Oo- today I think I will have a clone of me"

The other way is the regular sexual way but I bet all their tentacles get in the way. and they cant see where they are going... so enough of that. Lol


http://www.sciam.com/print_version.cfm?articleID=00031A14-67F1-1C72-9EB7809EC588F2D7

Answer 7

They root Russ, ya see its like this, the male has something called a blue veined custard chucker, and the female has a ''clam''...anyway the male slides the custard chucker into the clam....6 weeks later...a bunch of jelly blubbers swimmin' round the ocean...hoped that helped buddy.

Answer 8

Yes, every creature reproduces.

Answer 9

Under water!

Answer 10

Very carefully!