Podcast
Questions and Answers
Which structure is used by sponges for defense and capturing prey?
Which structure is used by sponges for defense and capturing prey?
- Endoskeleton
- Exoskeleton
- Nematocyst (correct)
- Alimentary canal
What is the primary function of an exoskeleton?
What is the primary function of an exoskeleton?
- To aid in digestion
- To secrete shells
- To protect the animal and provide structural support (correct)
- To prevent water loss
Which structure is unique to echinoderms and aids in locomotion, feeding, and gas exchange?
Which structure is unique to echinoderms and aids in locomotion, feeding, and gas exchange?
- Mantle
- Radula
- Visceral mass
- Water vascular system (correct)
What is the primary function of a radula in mollusks?
What is the primary function of a radula in mollusks?
Which phylum undergoes molting, a process of shedding the outer body layer?
Which phylum undergoes molting, a process of shedding the outer body layer?
Which type of circulatory system allows blood to flow out of the blood vessels and into body cavities, bringing cells in direct contact with blood?
Which type of circulatory system allows blood to flow out of the blood vessels and into body cavities, bringing cells in direct contact with blood?
Which structure is found in flatworms and aids in digestion and absorption?
Which structure is found in flatworms and aids in digestion and absorption?
Which structure is responsible for secreting shells in some mollusk species?
Which structure is responsible for secreting shells in some mollusk species?
What is the primary function of a foot in mollusks?
What is the primary function of a foot in mollusks?
Which type of digestive system has only one opening for both ingestion and egestion?
Which type of digestive system has only one opening for both ingestion and egestion?
