Antibiotics are substances used to fight an
infection of streptococcus, a bacterium that
causes strep throat. overuse of these antibiotics
can
(1) prevent future infections by these pathogens
(2) cause a decrease in the production of
enzymes
(3) allow organic molecules to be synthesized
(4) select for resistant organisms

As a small change in a person's dna can cause a genetic disorder

Which is not a likely outcome after extensive irrigation of dry farmland? useless, unproductive soil salinization of the soil depletion of groundwater nutrient-rich soil

What do isotopes of uranium have the same number of? what do they have a different number of? a) same number of protons; different number of electrons b) same number of protons; different number of neutrons c) same number of electrons; different number of protons d) same number of neutrons; different number of protons