Is an omega-3 fatty acid a saturated or unsaturated fatty acid and why? Omega-3 fatty acids are unsaturated; they have a double bond at the 3rd carbon from the tail end of the molecule.

Omega-3 fatty acids are unsaturated; they have a double bond at the 1st carbon from the front end of the molecule.

Omega-3 fatty acids are saturated; they have no double bonds anywhere in the molecule.

Omega-3 fatty acids are saturated; they have a double bond at the 3rd carbon from the tail end of the molecule.

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. a) glacial terrain b) a dry and sandy plain c) mostly mountain ranges d) covered by warm, shallow seas