hydrospire
hydrospire In Blastoidea (a class of pelmatozoans that became extinct in the Lower Permian but are known as fossils), a system of pores and folds to either side of each ambulacrum that may have served to circulate water into and from the coelom, thus allowing gas exchange.
More From encyclopedia.com
Respiration , Organisms respire in order to obtain oxygen and get rid of carbon dioxide. Oxygen drives cellular metabolism, the process in which glucose from food… Gas , Gas
Since ancient times, use of poison has been considered treacherous and, therefore, incompatible with honorable conduct in war. Yet, the history o… Helium , Helium
Background
Helium is one of the basic chemical elements. In its natural state, helium is a colorless gas known for its low density and low che… Tear Gas , tear gas / ti(ə)r/ • n. gas that causes severe irritation to the eyes, chiefly used in riot control to force crowds to disperse. • v. (tear-gas) [tr.… Tokyo Gas Co. Ltd , Tokyo Gas Co., Ltd.
1-5-20 Kaigan
Minato-ku
Tokyo 105
Japan
(03) 3433 2111
Fax: (03) 3432 4574
Public Company
Incorporated: 1885
Employees: 12,519
Sa… ion-exchange resin , ion‐exchange resin An organic compound that will adsorb ions under some conditions and release them under others. The best‐known example is in water‐…
You Might Also Like
NEARBY TERMS
hydrospire