Ad
related to: are starfish freshwater or saltwater pond shells good for water
Search results
Results from the WOW.Com Content Network
Will eat starfish: Moderate? Will only eat starfish. Peppermint shrimp: Lysmata wurdemanni complex: Yes: Easy: Some people think they eat corals, but they only eat dying coral (although this gives the appearance of eating healthy corals) Skunk cleaner shrimp: Lysmata amboinensis: Yes: Easy: Will clean dead tissue and remove parasites from fish.
The water vascular system of the starfish is a hydraulic system made up of a network of fluid-filled canals and is concerned with locomotion, adhesion, food manipulation and gas exchange. Water enters the system through the madreporite, a porous, often conspicuous, sieve-like ossicle on the aboral surface. It is linked through a stone canal ...
Freshwater molluscs are those members of the phylum Mollusca which live in freshwater habitats, both lotic (flowing water) such as rivers, streams, canals, springs, and cave streams (stygobite species) and lentic (still water) such as lakes, ponds (including temporary or vernal ponds), and ditches.
Starfish larvae are bilaterally symmetric, whereas the adults have fivefold symmetry. Echinoderms (Greek for spiny skin) is a phylum which contains only marine invertebrates. The adults are recognizable by their radial symmetry (usually five-point) and include starfish, sea urchins, sand dollars, and sea cucumbers, as well as the sea lilies.
Pisaster ochraceus, generally known as the purple sea star, ochre sea star, or ochre starfish, is a common seastar found among the waters of the Pacific Ocean. Identified as a keystone species , P. ochraceus is considered an important indicator for the health of the intertidal zone .
The majority of bivalve molluscs are saltwater species that live in the marine habitats, but a number of families have evolved to live in fresh water (and in some cases, also in brackish water). These belong to two different evolutionary lineages , i.e. freshwater mussels and freshwater clams , and the two groups are not closely related.
Diagram of water vascular system of a starfish, showing the ring canal, the radial canals, ampullae (small bulbs), and tube feet Echinoderms possess a unique water vascular system, a network of fluid-filled canals modified from the coelom (body cavity) that function in gas exchange, feeding, sensory reception and locomotion.
Marine protists are defined by their habitat as protists that live in marine environments, that is, in the saltwater of seas or oceans or the brackish water of coastal estuaries. Life originated as marine single-celled prokaryotes (bacteria and archaea) and later evolved into more complex eukaryotes. Eukaryotes are the more developed life forms ...
Ad
related to: are starfish freshwater or saltwater pond shells good for water