Answer:
Unfortunately the question is incomplete guys, can anyone give me the rest of it?
Explanation:
A sound wave is a wave of compression and rarefaction, by which sound is propagated in an elastic medium such as air.
Answer:
At the bottom you have the producers aka auto trophic livings (which use inorganic compounds to grow, produce energy, matter and so on..). These organisms would be plants, Cyrano bacteria, over all any organisms that do photosynthesis.
Phytoplankton form the base of a pelagic marine ecosystem.
Answer:
The small intestine
Explanation:
The small intestine absorbs most digested food molecules, as well as water and minerals, and passes them on to other parts of the body for storage or further chemical change.