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What advantage do free swimming larvae provide for the echinoderms?
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What advantage do free-swimming larvae provide for the echinoderms?
The free-swimming larvae can travel much greater distances than the bottom-dwelling adults, increasing their range. If the environmental conditions for the adults become bad, the larvae can travel to another area that may be more favorable.
What are Free-swimming larvae?
the larvae can swim, hide, eat, grow, and move away from danger.
What fertilization do echinoderms use?
Echinoderms typically use external fertilization, where eggs and sperm are released into the water column during spawning events. This process allows for the mixing of gametes in the aquatic environment, leading to fertilization. The fertilized eggs develop into free-swimming larvae, which eventually settle and undergo metamorphosis into the adult form. This reproductive strategy enhances genetic diversity within their populations.
What is the free swimming ciliated fertilized egg found in jellyfish called?
A fertilized egg in a jellyfish develops into a planula. These free swimming larvae are ciliated and shaped like small flattened pears.
What are amphibian larvae?
Larvae are the hatched form of an amphibian that is different from the adult. A larva of an amphibian may be free swimming (e.g. tadpoles) before the metamorphosis to an adult (e.g. a frog).
What is the advantage to a sessile animal of producing free swimming larvae?
Producing free-swimming larvae allows sessile animals to disperse and colonize new areas effectively. This strategy increases survival rates by reducing competition for resources within the parents' habitat and minimizing the likelihood of inbreeding.
Which phylums have trocophore larva?
Phyla Mollusca and Annelida have trochophore larvae. These larvae are characteristic of the early stages of development of certain marine invertebrates, where they display a ciliated, free-swimming, planktonic form.
Why are echinoderms unable to survive on land?
because they have some specialities to which they can only survive in the water such as they begin their lives as free swimming bilaterally symmetrical larvae etc.for e.g:star fish,sand dollar,sea-cucumber etc. Because they did not come to land. First one to come to land are amphibians but they are going to water for reproduction. Reptiles are the first form to fully adapt for terrestial environment.
What are amphibian?
Larvae are the hatched form of an amphibian that is different from the adult. A larva of an amphibian may be free swimming (e.g. tadpoles) before the metamorphosis to an adult (e.g. a frog).
What are free swimming ciliated larva seen in most aquatic mollusks?
The free swimming ciliated larva seen in most aquatic mollusks is called a trochophore larva. It has a ring of cilia around its middle that aids in movement and feeding. Trochophore larvae eventually develop into the adult form of the mollusk.
What are sponge larvae?
Sponge larvae are the early developmental stage of sponges, aquatic animals belonging to the phylum Porifera. These larvae are typically free-swimming and are usually characterized as either parenchymula or amphiblastula, depending on the species. Upon settling, they undergo metamorphosis to develop into adult sponges, which are sessile and filter-feeding organisms. Sponge larvae play a crucial role in the reproduction and dispersal of sponges in aquatic ecosystems.
