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Polarised light micrograph of a spine of a sea urchin (Echinus sp.). The test and spines of sea urchins are composed of calcium carbonate. Each spine articulates with a tubercle on the test. The elaborate structure of the spines when seen in cross section has made them a popular subject for microscopists.
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Creative#:
TOP16085496
Source:
達志影像
Authorization Type:
RM
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須由TPG 完整授權
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N/A
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No
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