Rounded, floating leaves with waxy covering and flexible stems have made the organism shown suited to the environment in which it lives. Which process is most responsible for adapting this organism to its environment? A.)climate change
B.)asexual reproduction
C.)genetic drift
D.) natural selection

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