3. how does fluoroquinolone affect bacterial cells but not eukaryotic cells?
it compromises bacterial cell walls by inhibiting formation of peptidoglycan, a chemical not found in eukaryotic cells.

It compromises bacterial cell walls by inhibiting formation of peptidoglycan, a chemical not found in eukaryotic cells

Explanation:

All antibacterial agents are unable to harm the eukaryotic cells because of various reasons.  Some antibacterial agents are unable to stop protein synthesis while some interacts with the enzymes required for development of cell wall in bacteria etc.

Fluoroquinolone are artificial broad spectrum antibiotic drugs that act as natural antimicrobials  and prevent prokaryotic cell like bacteria from dividing by prohibiting DNA unwinding and duplicating and also inhibits the formation of cell wall by formation of peptidoglycan

false because ozone (o3) depletion does not cause global warming, but both of these environmental problems have a common cause: human activities that release pollutants into the atmosphere altering it.

global warming is caused primarily by putting too much carbon dioxide into the atmosphere when coal, oil, and natural gas are burned to generate electricity or to run our cars.

explanation:

d concave shape of wave rock

explanation:

the concave shape of wave rock is a very good evidence that supports the evolution of earth due to chemical weathering. if we talk about structure of   wave rock, studies have estimated that it is around 2.7 billion years old. it also serves as the foundation of evidence that it was the place where australian continent began to form.

how the structure of wave rock was created?

studies suggest that structure of wave rock was created when the surrounded area was started to weather due to which deposition of material started on the part of land which now contains wave rock.

the structure of wave rock is considered to be one of the best-known landforms in australia. at the height of around 15 cm, there can be found flared slopes which formulate the margins of hyden rock. it is now assumed by geologists that wave rock was created by subsurface water-induced weathering and not by glaciers, waves or wind.

due to deposition of material over the period of long time, the wave rock became tougher and tougher due to weathering from surrounding terrain. this makes it a physical evidence that supports   the evolution of earth due to chemical weathering.

hope it !