Final answer:
Gram-positive and Gram-negative bacteria's fatality depends on the specific bacteria strain and numerous other factors, not the Gram classification alone. Gram-positive bacteria have thick peptidoglycan walls without an outer membrane, while Gram-negative bacteria have a thin peptidoglycan layer and an outer membrane.
Step-by-step explanation:
When it comes to the comparison between Gram-positive and Gram-negative bacteria infections, the fatality cannot be generalized based on the Gram classification alone. The term fatal is subjective and depends on a variety of factors including, but not limited to, the virulence of the specific bacterium, the site and severity of the infection, the immune status of the host, and the availability and effectiveness of medical treatment. Therefore, the correct answer to which infection could be more fatal is d) Depends on the specific bacteria.
Gram-positive bacteria have a thick cell wall composed of peptidoglycan, and they lack an outer membrane. On the other hand, Gram-negative bacteria have a thinner peptidoglycan layer and possess an outer membrane which contains lipopolysaccharides (LPS). This outer membrane can often provide additional protection to the bacteria against certain antibiotics, making them inherently more resistant to some treatments. This does not inherently make them more fatal, but it can contribute to difficulties in treatment.