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What is the relationship between a stationary polyp and free swimming medusa?
Wiki User
∙ 15y ago
Some cnidarians have a life cyce wih an alternation of generations between asexual reproduction and sexual reproduction; while asexual reproduction provides a large increasing of (identical) individuals, sexual reproduction mantain a genetic pool variety.
The generation supposed to reproduce asexually is polypoid; the generation supposed to reproduce sexually is medusoid.
Tipically, medusae produce male and female gametes, which fuse together making zygotes; a zygote becames an egg from which hatches a free swimming larva called planula; the planula reaches the sea floor and developes into a polyp; the polyp then becames a strobila (segmented polyp), wich reproduces asexually by strobilation, segmenting itself and producing many ephyras, which can be released one at a time or all together at the same time; each ephyra maturates into an adult medusa, reaching the reproductive maturity.
Wiki User
∙ 15y ago
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What is the advantage of the medusa over the attached polyp in the Cnidarian?
Mobility can be a major advantage where resources are involved. A stationary polyp can't leave an unfavourable location.
How do coelentrate move?
Coelenterates move freely swimming in the water. While some coelenterates are sedentary. For exmple Hydra shows different modes of locomotion like looping, somersaulting, gliding etc. In Aurelia (moon jelly), medusa stages move freely swimming in the water.
What are the two body forms of cnidarians?
1. Polyp 2. Medusa
What has a vase shaped body structure?
medusa
Does the freshwater hydra have a medusa stage in its life cycle?
no
What major difference distinguishes the life cycles of hydrozoans and anthozoans?
Anthozoans have both a free-swimming medusa stage and a stationary polyp stage. Hydrozoans have only a polyp stage.
Does Medusa's have a relationship with another god est?
yes medusa had a good relationship with perseus.
What is the free-swimming adult form of a jellyfish called?
An adult swimming cnidarian is called a medusa.
How old was Medusa when Zeus wanted to marry her?
Zeus never wanted to marry Medusa; Medusa had a relationship with Poseidon in Athena's temple.
What is a bowl shaped cnidarian that is adapted for swimming?
its a medusa- double checked
What was the contest between Aphrodite and Medusa?
A WEAVING CONTEST was the contest between Aphrodite and Medusa.
Two main forms of life for the cnidarians?
Polyps, which are Sessile or stationary, and Medusa which move.
What was Medusa's Relationship?
Wasn't it with like snakes or something of the sort??
Explain the difference between a polyp and a Medusa?
A polyp is anchored to substrate, like a rock or piece of coral. Anemones are polyps. They catch food with their tentacles and have the mouth on the upside. A medusa is swimming freely. Jellyfish are medusa stages. They catch food with their trailing tentacles and have the mouth on the downside. You can view polyps as the settled ´plant´ and medusa as the free-floating ´seed´, like in a dandelion. Though they aren´t plants at all, of course.
Do cnidarians the polyp body type is usually sessile the Medusa body type is free-swimming?
are you stupid
How do you spell medussa?
The word here may be Medusa, a snake-tressed gorgon of Greek mythology. The name medusa is also applied to the free-swimming stage of marine cnidarians (jellyfish, stinging nettles).
What is the advantage of the medusa over the attached polyp in the Cnidarian?
Mobility can be a major advantage where resources are involved. A stationary polyp can't leave an unfavourable location.
