Acoelomate animals with flame cells are:

Options

A. Platyhelminthes
B. Annelida
C. Ascheminthes
D. Arthropoda

Answer

To solve the question regarding which acoelomate animals possess flame cells, we can follow these steps:

### Step 1: Understand the Terms
- **Acoelomate Animals**: These are animals that do not have a coelom (body cavity). Examples include flatworms.
- **Flame Cells**: These are specialized excretory cells found in certain invertebrates that help in the removal of waste.

### Step 2: Analyze the Options
- **A. Platyhelminth**: This group includes flatworms, which are indeed acoelomate and possess flame cells for excretion.
- **B. Annelida**: These are segmented worms that are coelomates and have nephridia as their excretory organs.
- **C. Eschelminth**: This group refers to pseudocoelomates, which have a false coelom and do not possess flame cells.
- **D. Arthropoda**: These are coelomates that have a true coelom and utilize Malpighian tubules for excretion.

### Step 3: Identify the Correct Answer
From the analysis, we can conclude that the only acoelomate animals listed that have flame cells are found in option A, Platyhelminth.

### Final Answer
The correct answer is **A. Platyhelminth**.

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