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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.
the larvae can swim, hide, eat, grow, and move away from danger.
A fertilized egg in a jellyfish develops into a planula. These free swimming larvae are ciliated and shaped like small flattened pears.
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).
Barnacles are a type of shellfish. They grow from free swimming larvae.
To move away from being in one concentrated spot; spread outwards.
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.
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).
Once they are free swimming remove the male.
No, deep sea brittle stars do not lay eggs. Usually, they give birth to live, free swimming larvae. The stars are hermaphroditic, so they all give birth.
Allowing reef-building corals to expand their populations into new habitats. I am in Biology 102 at UT. I just answered this question correctly on mastering biology online.