Xavier listed the steps involved when sponges take in food and oxygen. 1. water is drawn in through pores and enters the central cavity. 2. food is filtered and digested. 3. water leaves through an opening at the top of the body. which describes the missing step? oxygen is removed from the water before step 3. oxygen is removed from the water after step 3. tentacles sting and paralyze prey after step 1. tentacles sting and paralyze prey before step 1.

the transfer of energy between two molecules spaced just nanometers apart plays a key role in many technologies, including photovoltaics, quantum information systems, lighting, and sensors, as well as in biophysics to measure nanometer distances and in photosynthesis. but an open question in this area is what effect, if any, the surrounding photonic environment has on this nanoscale energy transfer. by designing and performing a carefully controlled experiment to answer this question, scientists have settled the debate and found clues to improving the efficiency of many of the technologies that rely on this process.

explanation:

i think that c)gold was found there

but i am not sure