Glochidia larvae found in freshwater mussels (Unionidae) are unique among Mollusc larvae because they are: Parasitic in fishes Use cilia to swim and feed Planktotrophic Non-feeding and lecithotrophic
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Mollusks provide a great opportunity to examine adaptive radiation. Which of the following is the best example of adaptive radiation among mollusks? a. Mollusks are primarily found in the ocean but a limited number of species found their way to land. b. bivalves are filter feeders that have a complex life cycle. Glochidia live as parasites on fish gills until they are old enough to live on their own. This also helps them become more widely dispersed. c. Mollusks are found at multiple trophic levels and have many different ways of feeding including herbivores, detritivores, predators, parasites, and filter feeders. d. Mollusks have a basic body plan that includes a head-foot, mantel, and visceral mass.
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