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Coelenterata is a term encompassing the animal phyla Cnidaria (corals, true jellies, sea anemones, sea pens, and their relatives) and Ctenophora (comb jellies). The name comes from Ancient Greek κοῖλος (koîlos) 'hollow' and ἔντερον (énteron) 'intestine', referring to the hollow body cavity common to these two phyla.
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Although physiologic respiration is necessary to sustain cellular respiration and thus life in animals, the processes are distinct: cellular respiration takes place in individual cells of the organism, while physiologic respiration concerns the diffusion and transport of metabolites between the organism and the external environment.
Carbon respiration, a concept used in calculating carbon (as CO 2) flux occurring in the atmosphere; Ecosystem respiration, measurement of gross carbon dioxide production by all organisms in an ecosystem; Root respiration, exchange of gases between plant roots and the atmosphere; Photorespiration, enzymatic combination of RuBP with oxygen
A book lung is a type of respiration organ used for atmospheric gas-exchange that is present in many arachnids, such as scorpions and spiders. Each of these organs is located inside an open, ventral-abdominal, air-filled cavity (atrium) and connects with its surroundings through a small opening for the purpose of respiration .
The chemical equation of photosynthesis is 6 CO 2 (carbon dioxide) and 6 H 2 O (water), which in the presence of sunlight makes C 6 H 12 O 6 (glucose) and 6 O 2 (oxygen). Photosynthesis uses electrons on the carbon atoms as the repository for the energy obtained from sunlight. [72] Respiration is the opposite of photosynthesis.
This bibliography of biology is a list of notable works, organized by subdiscipline, on the subject of biology. [ 1 ] [ 2 ] Biology is a natural science concerned with the study of life and living organisms , including their structure, function, growth, origin, evolution, distribution, and taxonomy. [ 3 ]
Some small insects do demonstrate continuous respiration and may lack muscular control of the spiracles. Others, however, utilize muscular contraction of the abdomen along with coordinated spiracle contraction and relaxation to generate cyclical gas exchange patterns and to reduce water loss into the atmosphere.