In which of the following, the body is an aggregation of amoeboid cells :-

Options

A. Acellular slime molds
B. Cellular slime molds
C. Diatoms
D. Dinoflagellate

Answer

To solve the question, "In which of the following, the body is an aggregation of amoeboid cells?", we can follow these steps:

### Step 1: Understand the Options
First, we need to identify the options provided in the question. The options usually include various organisms such as diatoms, dinoflagellates, cellular slime molds, and acellular slime molds.

### Step 2: Analyze Each Option
- **Diatoms**: These are unicellular algae with a silica cell wall. They do not have amoeboid cells; hence, they do not fit the criteria.
- **Dinoflagellates**: These are also unicellular organisms, primarily known for their flagella. They do not form aggregates of amoeboid cells.
- **Acellular slime molds**: These organisms have a complex life cycle but do not form aggregates of amoeboid cells in the way described.
- **Cellular slime molds**: These organisms can exist as individual amoeboid cells that aggregate under unfavorable conditions, forming a multicellular structure.

### Step 3: Focus on Cellular Slime Molds
Cellular slime molds behave like individual amoebas when food is plentiful. When food becomes scarce, they aggregate to form a mass. This mass is known as a sorocarp, which consists of individual amoeboid cells that come together for survival.

### Step 4: Conclusion
Based on the analysis, the correct answer to the question is **cellular slime molds**, as they are the only option that describes an aggregation of amoeboid cells.

### Final Answer
The body is an aggregation of amoeboid cells in **cellular slime molds**.

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