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Consider the table.

Types of Bacteria

\begin{tabular}{|c|c|c|}
\hline
Form & Shape & Associated Disease \\
\hline
Coccus & [tex]$X$[/tex] & Strep throat \\
\hline
Bacillus & Rod shaped & [tex]$Y$[/tex] \\
\hline
Spirillum & Spiral & Cholera \\
\hline
\end{tabular}

Which best describes [tex]$X$[/tex] and [tex]$Y$[/tex]?

A. [tex]$X=$[/tex] Spherical; [tex]$Y=$[/tex] E. coli
B. [tex]$X=$[/tex] Comma shaped; [tex]$Y=$[/tex] Whooping cough
C. [tex]$X=$[/tex] Oval shaped; [tex]$Y=$[/tex] S. aureus
D. [tex]$X=$[/tex] Rod shaped; [tex]$Y=$[/tex] Pneumonia

Sagot :

GinnyAnswer
To determine the values of [tex]$X$[/tex] and [tex]$Y$[/tex], let's analyze the table and the characteristics of the bacteria mentioned:

1. Coccus bacteria:
- In microbiology, coccus refers to bacteria that are spherical in shape.
- Therefore, [tex]$X$[/tex] represents the shape of coccus bacteria.

2. Bacillus bacteria:
- Bacillus bacteria are rod-shaped.
- The associated disease for Bacillus is pneumonia.

Given these explanations:
- For coccus bacteria, the best description for [tex]$X$[/tex] would be "Spherical".
- For bacillus bacteria, the best description for [tex]$Y$[/tex] would be "Pneumonia".

Now let's match these with the given options:
1. [tex]$X=$[/tex] Spherical; [tex]$Y=$[/tex] E. coli
2. [tex]$X=$[/tex] Comma shaped; [tex]$Y=$[/tex] Whooping cough
3. [tex]$X=$[/tex] Oval shaped; [tex]$Y=$[/tex] S. aureus
4. [tex]$X=$[/tex] Rod shaped; [tex]$Y=$[/tex] Pneumonia

Based on our analysis:
- Option 1 correctly identifies [tex]$X$[/tex] as Spherical, but incorrectly associates [tex]$Y$[/tex] with E. coli.
- Option 2 incorrectly identifies [tex]$X$[/tex] as Comma shaped and associates [tex]$Y$[/tex] with Whooping cough.
- Option 3 incorrectly identifies [tex]$X$[/tex] as Oval shaped and associates [tex]$Y$[/tex] with S. aureus.
- Option 4 incorrectly identifies [tex]$X$[/tex] as Rod shaped but correctly identifies [tex]$Y$[/tex] as Pneumonia.

Thus, the correct answer is:
[tex]$X=$[/tex] Spherical; [tex]$Y=$[/tex] Pneumonia
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