Choose all the answers that apply. what are examples of how science has influenced technology? a. scientific study of electron flow resulted in the concept of electricity b. nuclear power plants were created after discovering that massive amounts of c. energy could be released by splitting the nucleus of an atom d. satellites scientists map the earth e. discovery of x-rays allowed for creation of x-ray machines to advance internal medicine robotic machines assisting doctors in surgery

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