Podcast
Questions and Answers
What is the characteristic symmetry of most adult echinoderms?
What is the characteristic symmetry of most adult echinoderms?
- Radial symmetry (correct)
- Pentaradial symmetry
- Spiral symmetry
- Bilateral symmetry
What is the location of the mouth in echinoderms?
What is the location of the mouth in echinoderms?
- At the center of the disc (correct)
- On the underside of the body
- At the base of the arm
- At the tip of the arm
What is the composition of the endoskeleton of echinoderms?
What is the composition of the endoskeleton of echinoderms?
- Calcareous plates (correct)
- Fleshy tissue
- Chitinous plates
- Cartilaginous tissue
Which echinoderm group has secondarily evolved bilateral symmetry?
Which echinoderm group has secondarily evolved bilateral symmetry?
What is the function of the water vascular system in echinoderms?
What is the function of the water vascular system in echinoderms?
What is the structure that connects the water vascular system to the outside environment in echinoderms?
What is the structure that connects the water vascular system to the outside environment in echinoderms?
What is a characteristic feature of the Asteroidea clade?
What is a characteristic feature of the Asteroidea clade?
What is a unique reproductive feature of some starfish species?
What is a unique reproductive feature of some starfish species?
How do starfish feed on their prey?
How do starfish feed on their prey?
What is a unique feature of the regeneration process in starfish?
What is a unique feature of the regeneration process in starfish?
What is the name of the clade that includes sea lilies and feather stars?
What is the name of the clade that includes sea lilies and feather stars?
How many clades are extant echinoderms divided into?
How many clades are extant echinoderms divided into?
What is the primary mode of locomotion in sea urchins?
What is the primary mode of locomotion in sea urchins?
What is the feeding behavior of sea urchins?
What is the feeding behavior of sea urchins?
What is the characteristic of sea cucumbers in terms of symmetry?
What is the characteristic of sea cucumbers in terms of symmetry?
What is the primary function of the tube feet in sea cucumbers?
What is the primary function of the tube feet in sea cucumbers?
What is the characteristic of the endoskeleton in sea cucumbers?
What is the characteristic of the endoskeleton in sea cucumbers?
What is the consequence of overharvesting of sea urchin predators?
What is the consequence of overharvesting of sea urchin predators?
What is the primary effect of overharvesting sea urchin predators on kelp forests?
What is the primary effect of overharvesting sea urchin predators on kelp forests?
What is the primary function of the jaw-like plates around the mouth of sea urchins?
What is the primary function of the jaw-like plates around the mouth of sea urchins?
What is the characteristic of the endoskeleton in sea cucumbers?
What is the characteristic of the endoskeleton in sea cucumbers?
What is the primary mode of feeding in holothuroidea?
What is the primary mode of feeding in holothuroidea?
What is the result of sea urchin population explosions on kelp forests?
What is the result of sea urchin population explosions on kelp forests?
What is the characteristic of the tube feet in some species of sea cucumbers?
What is the characteristic of the tube feet in some species of sea cucumbers?
What is a key factor influencing the starfish's ability to regenerate lost arms?
What is a key factor influencing the starfish's ability to regenerate lost arms?
What is the primary mechanism by which starfish impact intertidal community structure?
What is the primary mechanism by which starfish impact intertidal community structure?
What is a characteristic feature of sea cucumbers that distinguishes them from other echinoderm groups?
What is a characteristic feature of sea cucumbers that distinguishes them from other echinoderm groups?
What is the primary function of the tube feet in starfish?
What is the primary function of the tube feet in starfish?
What is a unique reproductive feature of some starfish species?
What is a unique reproductive feature of some starfish species?
What is the primary food source for many starfish species?
What is the primary food source for many starfish species?
What is a possible consequence of the regeneration process in starfish?
What is a possible consequence of the regeneration process in starfish?
What is a characteristic of the dermis of echinoderms?
What is a characteristic of the dermis of echinoderms?
What is the primary function of the hydraulic canals in the water vascular system of echinoderms?
What is the primary function of the hydraulic canals in the water vascular system of echinoderms?
What is a characteristic of sea cucumber ossicles?
What is a characteristic of sea cucumber ossicles?
What is a possible impact of starfish on intertidal communities?
What is a possible impact of starfish on intertidal communities?
What is a characteristic of starfish feeding behavior?
What is a characteristic of starfish feeding behavior?
