### Breakdown the Problem
1. Identify the locomotion method used by starfish.
2. Analyze the potential answers provided.

### Relevant Concepts
- Starfish, or sea stars, belong to the class Asteroidea in the phylum Echinodermata.
- Their movement is based on a unique structure that allows them to navigate their environment.

### Analysis and Detail
1. **A. Arms**: While starfish have arms (usually five or more), they do not crawl using just their arms.
2. **B. Muscular foot**: This term is typically used for terrestrial mollusks, like snails. Starfish do not possess a muscular foot.
3. **C. Tube feet**: Starfish use tube feet, which are part of their water vascular system. These tube feet enable them to adhere to surfaces and assist in locomotion.
4. **D. Parapodia**: This term relates to appendages found in some annelids, not echinoderms like starfish.

### Verify and Summarize
After reviewing the options, the only relevant structure related to the movement of starfish is $ \text{C. Tube feet} $.

### Final Answer
**C. Tube feet**

Question

### Breakdown the Problem
1. Identify the locomotion method used by starfish.
2. Analyze the potential answers provided.

### Relevant Concepts
- Starfish, or sea stars, belong to the class Asteroidea in the phylum Echinodermata.
- Their movement is based on a unique structure that allows them to navigate their environment.

### Analysis and Detail
1. **A. Arms**: While starfish have arms (usually five or more), they do not crawl using just their arms.
2. **B. Muscular foot**: This term is typically used for terrestrial mollusks, like snails. Starfish do not possess a muscular foot.
3. **C. Tube feet**: Starfish use tube feet, which are part of their water vascular system. These tube feet enable them to adhere to surfaces and assist in locomotion.
4. **D. Parapodia**: This term relates to appendages found in some annelids, not echinoderms like starfish.

### Verify and Summarize
After reviewing the options, the only relevant structure related to the movement of starfish is $ \text{C. Tube feet} $.

### Final Answer
**C. Tube feet**

Knowee AI · Accepted Answer

### Breakdown the Problem
1. Identify the locomotion method used by starfish.
2. Analyze the potential answers provided.

### Relevant Concepts
- Starfish, or sea stars, belong to the class Asteroidea in the phylum Echinodermata.
- Their movement is based on a unique structure that allows them to navigate their environment.

### Analysis and Detail
1. **A. Arms**: While starfish have arms (usually five or more), they do not crawl using just their arms.
2. **B. Muscular foot**: This term is typically used for terrestrial mollusks, like snails. Starfish do not possess a muscular foot.
3. **C. Tube feet**: Starfish use tube feet, which are part of their water vascular system. These tube feet enable them to adhere to surfaces and assist in locomotion.
4. **D. Parapodia**: This term relates to appendages found in some annelids, not echinoderms like starfish.

### Verify and Summarize
After reviewing the options, the only relevant structure related to the movement of starfish is $ \text{C. Tube feet} $.

### Final Answer
**C. Tube feet**

Starfishes crawl by means ofSelect an answerAarmsBmuscular footCtube feetDparapodia

Question

Starfishes crawl by means of

Solution

Breakdown the Problem

Relevant Concepts

Analysis and Detail

Verify and Summarize

Final Answer

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