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Though suction feeding can be seen across fish species, those with more cranial kinesis show an increase in suction potential as a result of more complex skull linkages that allow greater expansion of the buccal cavity and thereby create a greater negative pressure. Most commonly, this is achieved by increasing the lateral expansion of the skull.
Pourbaix diagram of iron. [1] The Y axis corresponds to voltage potential. In electrochemistry, and more generally in solution chemistry, a Pourbaix diagram, also known as a potential/pH diagram, E H –pH diagram or a pE/pH diagram, is a plot of possible thermodynamically stable phases (i.e., at chemical equilibrium) of an aqueous electrochemical system.
The basking shark is a passive filter feeder, filtering zooplankton, small fish, and invertebrates from up to 2,000 tons of water per hour. [6] Unlike the megamouth and whale sharks, the basking shark does not appear to actively seek its quarry; but it does possess large olfactory bulbs that may guide it in the right direction.
Marcel Pourbaix (16 September 1904 – 28 September 1998) was a Belgian chemist and pianist. [citation needed] He performed his most well known research at the University of Brussels, studying corrosion. [1] His biggest achievement is the derivation of potential-pH, better known as “Pourbaix Diagrams”.
The internal anatomy is visible, including the paired siphons to the right A siphon is an anatomical structure which is part of the body of aquatic molluscs in three classes : Gastropoda , Bivalvia and Cephalopoda (members of these classes include saltwater and freshwater snails , clams , octopus , squid and relatives).
Ascidiacea, commonly known as the ascidians or sea squirts, is a paraphyletic class in the subphylum Tunicata of sac-like marine invertebrate filter feeders. [2] Ascidians are characterized by a tough outer test or "tunic" made of the polysaccharide cellulose.
The term limnology was coined by François-Alphonse Forel (1841–1912) who established the field with his studies of Lake Geneva.Interest in the discipline rapidly expanded, and in 1922 August Thienemann (a German zoologist) and Einar Naumann (a Swedish botanist) co-founded the International Society of Limnology (SIL, from Societas Internationalis Limnologiae).
Blue jay eating at a feeder Bird feeder in a garden. A birdfeeder, bird table, or tray feeder is a device placed outdoors to supply bird food to birds (bird feeding).The success of a bird feeder in attracting birds depends upon its placement and the kinds of foods offered, [1] as different species have different preferences.
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