Crinoids, also known as sea lilies, appear to be sea plants but are not plants at all. crinoids are an echinoderm species which uses anchoring structures called holdfasts to attach themselves to the sea floor. crinoids were most abundant in pennsylvania during the mississippian period, which ranged from 375 to 320 million years ago. fossils of the crinoids shows that during most of this time pennsylvania was that provided favorable conditions for crinoid growth
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Biology, 21.06.2019 18:30
The graph shows the solubility of several different salts in water, across a range of temperatures. according to the graph, which salt can dissolve at a concentration of about 60 g/100 cm3 of water at 40 degrees celsius?
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Biology, 22.06.2019 04:00
What is the difference between how ionic and covalent bonds form
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Crinoids, also known as sea lilies, appear to be sea plants but are not plants at all. crinoids are...
Mathematics, 21.10.2019 18:30
Mathematics, 21.10.2019 18:30
Biology, 21.10.2019 18:40
English, 21.10.2019 18:40