Examlex
In the _______ stage of syphilis, a genital sore is always present, exuding fluids and huge numbers of spirochetes.
Hydra Morphology
The study of the physical form and structure of the freshwater organism Hydra, known for its regenerative capabilities.
Nematocysts
Specialized cells found in cnidarians (e.g., jellyfish) that contain a coiled, venomous thread used for capturing prey and defense.
Tube-shaped
Describing an object or structure that is long, hollow, and cylindrical.
Water Vascular System
A unique hydraulic system used by echinoderms, such as starfish, for locomotion, food and water transportation, and respiration.
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