Crinozoa
Crinozoa (phylum Echinodermata) A subphylum of echinoderms that have radial symmetry, a tendency to produce a cup-shaped or globoid, plated test (theca), and appendages (brachioles or arms) which support exothecal extensions of feeding ambulacra. The subphylum includes eight classes, seven of which were extinct by the end of the Palaeozoic, with only the Crinoidea surviving to the present day.
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Tube feeding is an optional medical treatment to deliver nutrition when a patient lacks the ability to eat or swall… Arm , arm1 / ärm/ • n. 1. each of the two upper limbs of the human body from the shoulder to the hand. ∎ (in technical use) each of these upper limbs from… Thyroid Function Tests , Definition
Thyroid functions tests are a variety of blood and nuclear medical tests performed to determine if the thyroid is working correctly and to… Seven Days Battles , See C. Dowdey, The Seven Days (1964). musculo-skeletal system , arms serve as our primary connection to people and objects, through our reach and our ability to grasp things: through defensive postures, arms can a…
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Crinozoa