Answer:
c
Explanation:
act as carrier molecules for various solutes
Smallest to largest- molecule, cell, tissue, organ, organ system, organism, population, community, ecosystem, biosphere.
Not sure which 7 you're looking for
GUA, because as opposed to DNA, RNA contains Uracil not Thymine so G matches with C and A with U.
Though it is not yet widely practiced, phages (aka bacteriophages) are one way to overcome the obstacle of antibiotic-resistant bacteria. Phages specifically kill bacteria as they fulfill their own duties in their life cycle.