The New Encyclopaedia Britannica: Suppl, Volume 16Encyclopaedia Britannica, 1997 |
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Page 382
... mantle cavity nor- mally depends on muscular pumping through inhalant and exhalant siphons . Within the cavity itself , however , ciliary activity maintains continuous movement across the gill surfaces , collecting food particles and ...
... mantle cavity nor- mally depends on muscular pumping through inhalant and exhalant siphons . Within the cavity itself , however , ciliary activity maintains continuous movement across the gill surfaces , collecting food particles and ...
Page 383
... mantle wall increases the volume of the mantle cavity and water rushes in . Contraction of the circular mantle muscles closes the edge of the mantle and reduces its volume , forcing the enclosed water through the mobile funnel at high ...
... mantle wall increases the volume of the mantle cavity and water rushes in . Contraction of the circular mantle muscles closes the edge of the mantle and reduces its volume , forcing the enclosed water through the mobile funnel at high ...
Page 852
... mantle cavity . This portion of the exoskele- ton is molted periodically , the process being controlled by hormones . Internal features . Tissues and musculature . The tissues and organs of the barnacle are bathed by blood , which ...
... mantle cavity . This portion of the exoskele- ton is molted periodically , the process being controlled by hormones . Internal features . Tissues and musculature . The tissues and organs of the barnacle are bathed by blood , which ...
Contents
CHINA | 36 |
CHINESE LITERATURE | 231 |
CHORDATES CHRISTIANITY | 251 |
Copyright | |
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