The type of antimicrobial drug that would be least toxic to humans is a drug thata) inhibits protein synthesisb) disrupts the cytoplasmic membranec) inhibits nucleic acid synthesisd)inhibits cell wall synthesis

The correct answer is D) Inhibits cell wall synthesis.

Explanation:

Antimicrobial drugs are drugs that act against microbes like bacteria, fungus, virus, protozoa, etc. These drugs must be specific and should not harm the host cells but must be effective against microbial cell.

Both microbes and humans contain proteins, cytoplasmic membrane, and nucleic acid therefore antimicrobial drugs that target these structures can harm the host cell.

As human lack cell wall, therefore, the antimicrobial drug which inhibit cell wall synthesis will not be able to harm humans and will selectively kill the cells that contain cell wall like bacteria. Therefore the right answer is D.

when atoms of different types of elements join together, they make molecules called compounds. water consists of compound molecules made up of 2 hydrogen atoms and 1 oxygen atom. this is why it's called h2o. water will always have 2 times the number of hydrogen atoms as oxygen atoms.

sheep is a herbivore animal whereas grasshopper belongs to the class chordates but both of them feed on greens.  

if grasshopper and sheep feeding on a pasture land, i do not think both of them will have any impact on each other. however, the number of the species can make difference. since sheep feed on greens, there is a possibility there left no pasture land for the grasshoppers or they may get extinct.