How To Use Free-swimming In A Sentence
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Many cichlids brood the eggs in the mouth and, although rare, the free-swimming young of some species also rush into the parent's mouth for protection.
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The female releases her eggs one at a time, and one hatching the young animal will go through both a free-swimming trochophore and veliger stage, like all molluscs, before settling into an adult form in the muddy seafloor.
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In some habitats, in addition to the aquatic insect larvae, crustaceans such as freshwater shrimp, crayfishes, and tiny free-swimming “water fleas” are important food items.
Trout and Salmon of North America
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Fertilized eggs may be brooded for a time or may develop directly into a free-swimming, ciliated planula larva.
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Their larvae are free-swimming and NOT radially symmetrical.
Starfish sex. | My[confined]Space
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To determine the importance of fragmentation, tethered and free-swimming euphausiids were videotaped in the presence of marine snow representing a range of aggregate strengths, sizes, and ages.
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Many tunicates have a larva that is free-swimming and exhibits all chordate characteristics: it has a notochord, a dorsal nerve cord, pharyngeal slits, and a post-anal tail.
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Swimmer's itch is caused by a free-swimming parasite that burrows into and irritates the skin of humans.
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Free-swimming larvae of land crabs eat plankton in the ocean.
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More than 700 creatures new to science, ranging from crustaceans and molluscs to carnivorous sponges and free-swimming worms, have been discovered on a series ...
Todd Palmer and Rob Pringle: Reading Lion Tracks: New York Times' Friedman on Vacation in the Bush
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Not only do P. sinitsini become adults in E. symmetrica, but eggs are produced and hatch inside the daughter sporocysts, releasing free-swimming miracidia.
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The free-swimming tadpoles produced by sexual reproduction live only a few days, during which time they can be spread by tidal and storm currents to form new colonies.
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Fern gametes are free-swimming and a thin film of water is required for the male gametes to travel from the antheridia into the neck of the archcgonia to fertilize the eggs.
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Free-swimming echinopluteus sea urchin (Echinocardium cordatum) larva feeds on microplankton captured with its ciliated arms.
Plankton
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Plants and animals arrive as plankton, nekton (free-swimming), fouling organisms (attached inside and on the hulls, propellers, and intake systems of vessels), and benthos (bottom dwellers).
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Chemicals, usually in the form of short-chain fatty acids, or specific amino acids, which are released from the molluscan host, then attract the free-swimming miracidia.
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A free-swimming roundworm thus looks rather like it is thrashing about aimlessly.
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Among the damaged coral we saw free-swimming moray eels, octopuses, and several anemones with their resident clownfish.
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For example, reproduction in the cryptomonads is asexual and primarily via longitudinal cell division with the cell dividing in either a free-swimming or nonmotile condition.
Phytoplankton
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Even the degeneration of a medusoid from a free-swimming animal to a mere brood-sac (gonophore) is not sudden and saltatory, but occurs by imperceptible modifications throughout hundreds of years, as we can learn from the numerous stages of the process of degeneration persisting at the same time in different species.
Evolution in Modern Thought
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These free-swimming cells, which apparently are formed only to reunite with each other, are called zoöspores, while the organism which results from their fusion is known as a zygospore.
Taboo and Genetics A Study of the Biological, Sociological and Psychological Foundation of the Family
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Fertilized eggs may be brooded for a time or may develop directly into a free-swimming, ciliated planula larva.
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There are more than a thousand described species of golden algae, most of them free-swimming and unicellular, but there are filamentous and colonial forms.
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The body of an echiuran lacks annelid-type segmentation, but the distinctive free-swimming trochophore larval stages of echiurans and polychaetes are very similar.
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The free-swimming larva settles and undergoes metamorphosis into a juvenile sponge.
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Eggs are produced and hatch inside the daughter sporocysts, releasing free-swimming miracidia.
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Fish with fins and scales are generally free-swimming and are found primarily in healthy, flowing water.
Modern Science in the Bible
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The eggs of most frogs hatch into aquatic, free-swimming larvae, commonly known as tadpoles.
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Carnivorous sponges, free-swimming worms, crustaceans, and molluscs living in the Weddell Sea provide new insights into the evolution of ocean life.
May 16th, 2007
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It wasn't until people started to look at them closely that they saw that they were actually animals they had free-swimming young and they digested.
A Conversation with Rebecca Stott about The Coral Thief
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These are miniature jaw-like structures that come from a free-swimming worm-like animal, actually more closely related to fishes than to any of the other invertebrates.
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The free-swimming y-larvae shed their articulated exoskeleton, and a simple, slug - like, pulsing mass of cells emerged.
Archive 2008-05-01
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American lobsters have a complex life cycle that involves a 3-10 week free-swimming larval stage in surface water.
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They also go through a second larval stage called the veliger stage, which is also a free-swimming stage.
CreationWiki - Recent changes [en]
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The results demonstrated that in free-swimming spheroids, only those cells of the anterior hemisphere that face toward the light source reverse the beating direction in the presence of illumination; this behavior results in phototactic turning.
BioMed Central - Latest articles
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Most marine bivalves go through a trochophore stage before turning into a free-swimming veliger larva.
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The eggs of most frogs hatch into aquatic, free-swimming larvae, commonly known as tadpoles.
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The free-swimming fish seem to congregate annoyingly at the thermocline, where the oily effect of mixing water makes them appear constantly out of focus.
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Even the degeneration of a medusoid from a free-swimming animal to a mere brood-sac (gonophore) is not sudden and saltatory, but occurs by imperceptible modifications throughout hundreds of years, as we can learn from the numerous stages of the process of degeneration persisting at the same time in different species.
Evolution in Modern Thought
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What was discovered in the Wahpeton area is known as a veliger - a microscopic free-swimming zebra mussel that can float for weeks before eventually attaching to something and growing into a dime-size mussel.
Homepage | INFORUM | Fargo, ND
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Wherever certain species of snails lived, in ditches or ponds or streams, parasitologists came across free-swimming animals that looked like small versions of flukes except that they had great tails attached to their rears.
Parasite Rex
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Oviparity with free-swimming larvae is the most common, but direct terrestrial development and viviparity (with attendant internal fertilization) are known in toads as well.
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It is the region inhabited by plankton, which are minute organisms that drift or float at various depths in the water, and by nekton, which are free-swimming organisms.