Articulated

... parts. Levers, wheels, axles, and pulleys aren't very complex on their own, but you can use them to make complicated things. The similar concept articulated in the OP is what I thought of after learning about hypostasis; particularly, how the same hypostasis can result from mutations in different ...

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Looks like a chiton. I think you're right. The "white ridges" are apparently the remains of the articulated shell plates that normally cover it. This one seems to correspond to photos of the "gumboot" chiton.

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... thus you use more muscles. Maybe this could explain why some african people have larger lips and some don't. Maybe their language needs to be very articulated. Could be worth looking into! Dont you think your cause-effects is a little convoluted. The language comes later so people with certain ...

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... thus you use more muscles. Maybe this could explain why some african people have larger lips and some don't. Maybe their language needs to be very articulated. Could be worth looking into!

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Gavin Organisms such as Trilobites of the Phylum Arthropoda, have articulated body plans, intricate nervous systems and compound eyes. They first appear fully formed at the beginning of the Cambrian strata along with many other phyla of equal complexity. ...

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