Asked by Wyatt Blackford on Jul 24, 2024
Verified
Which of the following statements about hydra morphology is correct?
A) The hydra has a long single tentacle containing numerous nematocysts.
B) The hydra has a single polyp that is filled with gas and keeps the organism afloat.
C) The hydra is bell shaped and has multiple tentacles.
D) The hydra is a tube-shaped polyp that has two layers of tissue.
E) The hydra is bilaterally symmetrical.
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.
- Recognize and illustrate the specificities and developmental progressions of leading phyla in the kingdom Animalia.
- Expound on the structure and functionality of specialized tissues and systems among various animal types.
Verified Answer
RG
Ramon GomezJul 31, 2024
Final Answer :
D
Explanation :
Hydras are tube-shaped polyps with two main layers of tissue: an outer epidermis and an inner gastrodermis, which enclose a central digestive compartment, the gastrovascular cavity.
Learning Objectives
- Recognize and illustrate the specificities and developmental progressions of leading phyla in the kingdom Animalia.
- Expound on the structure and functionality of specialized tissues and systems among various animal types.