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Questions and Answers
What is found on the ventral side of a starfish?
What is found on the ventral side of a starfish?
- Dorsal side
- Rays
- Mouth (correct)
- Eye Spot
What are tube feet?
What are tube feet?
Sticky suction cups on the ventral side.
What are the arms of a starfish called?
What are the arms of a starfish called?
Rays
Where is the eye spot found on a starfish?
Where is the eye spot found on a starfish?
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What does the ventral side refer to?
What does the ventral side refer to?
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What is the dorsal side of a starfish?
What is the dorsal side of a starfish?
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What phylum do starfish belong to?
What phylum do starfish belong to?
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What type of symmetry do starfish have?
What type of symmetry do starfish have?
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Study Notes
Starfish Structure and Features
- Mouth: Located on the ventral side, serving as the entry point for food.
- Tube Feet: Found on the ventral side, these are sticky suction cups that assist in movement and feeding.
- Rays: Refers to the arms of a starfish, typically five in number, extending from the central disc.
- Eye Spot: Positioned at the tip of each ray, sensitive to light, aiding in navigation.
Orientation of Starfish
- Ventral Side: Known as the bottom side, where the mouth is located; crucial for feeding.
- Dorsal Side: The top side or front, which is used for protection and sensory functions.
Biological Classification
- Echinodermata: The phylum that includes starfish, characterized by their radial symmetry and a water vascular system.
- Radial Symmetry: A type of symmetry seen in starfish, allowing for a circular arrangement of body parts around a central axis.
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