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Questions and Answers
What is the main characteristic of the Coelenteron in the Class Hydrozoa?
What is the main characteristic of the Coelenteron in the Class Hydrozoa?
- It has a complex stomodeum (gullet)
- It is filled with specialized cells
- It is divided into multiple chambers
- It serves as both a digestive chamber and a hydrostatic skeleton (correct)
What is the primary function of the cnidocytes (stinging cells) found in the tentacles of Hydrozoa?
What is the primary function of the cnidocytes (stinging cells) found in the tentacles of Hydrozoa?
- For filtering food particles
- For locomotion
- For capturing prey and defense (correct)
- For reproduction
Which of the following is a characteristic of the medusa form in the Class Hydrozoa?
Which of the following is a characteristic of the medusa form in the Class Hydrozoa?
- It has a complex stomodeum (gullet)
- It is conspicuous and free-swimming
- It is the dominant life stage (correct)
- It has a divided coelenteron
How do Hydrozoa typically reproduce sexually?
How do Hydrozoa typically reproduce sexually?
What type of environment do Hydrozoa commonly inhabit?
What type of environment do Hydrozoa commonly inhabit?
What is the primary food source for Hydrozoa?
What is the primary food source for Hydrozoa?
What is the distinguishing feature of the medusa form of some jellyfish discussed in the text?
What is the distinguishing feature of the medusa form of some jellyfish discussed in the text?
What is the role of zooxanthellae in the symbiotic relationship with certain jellyfish?
What is the role of zooxanthellae in the symbiotic relationship with certain jellyfish?
In the class Anthozoa, what is the function of cnidocytes on the hollow tentacles surrounding the central mouth?
In the class Anthozoa, what is the function of cnidocytes on the hollow tentacles surrounding the central mouth?
What aids in directing food particles into the gastrovascular cavity for digestion in Anthozoa?
What aids in directing food particles into the gastrovascular cavity for digestion in Anthozoa?
How do polyps typically reproduce in Anthozoa?
How do polyps typically reproduce in Anthozoa?
What is a characteristic of planula larvae in the life cycle of Anthozoa?
What is a characteristic of planula larvae in the life cycle of Anthozoa?
What is a distinguishing feature of Physalia, a member of Class Hydrozoa?
What is a distinguishing feature of Physalia, a member of Class Hydrozoa?
Which structure in Physalia helps it achieve buoyancy in the water?
Which structure in Physalia helps it achieve buoyancy in the water?
What is the role of Dactylozoids in Class Hydrozoa?
What is the role of Dactylozoids in Class Hydrozoa?
How do Physalia colonies reproduce?
How do Physalia colonies reproduce?
What is the primary function of Gonozoids in Class Hydrozoa?
What is the primary function of Gonozoids in Class Hydrozoa?
Which feature distinguishes Class Scyphozoa from Class Hydrozoa based on the text?
Which feature distinguishes Class Scyphozoa from Class Hydrozoa based on the text?
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