\begin{tabular}{|l|l|l|l|}
\hline
\multicolumn{4}{|c|}{Characteristics of Each Kingdom} \\
\hline
Domain & \multicolumn{1}{|c|}{Kingdom} & \multicolumn{1}{|c|}{Body Type} & \multicolumn{1}{|c|}{Cell Type} \\
\hline
Bacteria & Eubacteria & Unicellular & Prokaryote \\
\hline
Archaea & Archaebacteria & Unicellular & Prokaryote \\
\hline
\multirow{4}{*}{Eukarya} & Protista & Most Unicellular & Eukaryote \\
\cline{2-4}
& Fungi & Both & Eukaryote \\
\cline{2-4}
& Plantae & Multicellular & Eukaryote \\
\cline{2-4}
& Animalia & Multicellular & Eukaryote \\
\hline
\end{tabular}

Based on the table, which domains contain only one body type?

A. Fungi and Eukarya
B. Bacteria and Archaea
C. Eukarya and Fungi
D. Plantae and Bacteria



Answer :

To determine which domains contain only one body type based on the given table, let's analyze each domain and their corresponding kingdoms:

1. Bacteria Domain:
- Kingdom: Eubacteria
- Body type: Unicellular
- Cell type: Prokaryote

Since Bacteria domain has only one kingdom, which exclusively has a "Unicellular" body type, it clearly contains only one body type.

2. Archaea Domain:
- Kingdom: Archaebacteria
- Body type: Unicellular
- Cell type: Prokaryote

Similar to the Bacteria domain, the Archaea domain consists of a single kingdom, and it also exclusively exhibits the "Unicellular" body type.

3. Eukarya Domain:
- Kingdoms: Protista, Fungi, Plantae, Animalia
- Protista: Most unicellular
- Fungi: Both unicellular and multicellular
- Plantae: Multicellular
- Animalia: Multicellular

This domain contains multiple kingdoms, and among them, there are both unicellular and multicellular organisms. Thus, the Eukarya domain does not contain only one body type.

Now, let's look at the given options:

1. Fungi and Eukarya:
- Incorrect, because Fungi can have both body types, and Eukarya encompasses multiple body types.

2. Bacteria and Archaea:
- Correct, as explained above. Both these domains consist solely of unicellular organisms in their respective kingdoms.

3. Eukarya and Fungi:
- Incorrect for the same reason as the first option.

4. Plantae and Bacteria:
- Incorrect, because while Plantae is multicellular, the question asks specifically about domains, whereas Plantae is a kingdom.

Therefore, the correct answer is Bacteria and Archaea.