The answer is (1) !!
it is one direction, from sun to produces to consumer !!
Answer:
Explanation:
Transfer RNA (tRNA) precursors undergo endoribonucleolytic processing of their 5' and 3' ends. 5' cleavage of the precursor transcript is performed by ribonuclease P (RNase P). While in most organisms RNase P is a ribonucleoprotein that harbors a catalytically active RNA component, human mitochondria and the chloroplasts (plastids) and mitochondria
One reason is for safety! in case you get stranded in a body of water you can keep yourself afloat
B. Reproductive organs are formed by the body