Quiz #3 Echinodermata and Chordata Flashcards
(36 cards)
Echinodermata Movement
Sessile or Slow moving
Eye Spots
Tip of Rays
Echinodermata Digestion
Complete
Echinodermata Support
Endoskeleton - Calcium Carbonate
Echinodermata Reproduction
External
Class Holothuroidea Example
Sea Cucumbers
Class Asteroidea Example
Sea Stars
Echinodermata Symmetry
Radial
Echinodermata Circulatory System
Open
Water Vascular System
How sea stars get around
Class Ophiuroidea Example
Brittle Star
Regenerative Properties
They can regrow limbs
Class Echinoidea Example
Sea Urchins, Sand Dollars, Sea Stars
Pharyngeal Slits
develop into gills and eventually elements of the head, jaw, and ears
Optic Nerve
Part of the chordates nervous system
Chordates Digestion
Complete
Pumps blood in chordates
Heart
Dorsal Hollow Nerve Cord
develops into the central nervous system: the brain and the spinal cord
Notochord
Becomes cartilage dies between the vertebrae
Function of Dorsal Fins
Increase Lateral Surface Drag
Function of the Pelvic Fins
Balance
Chordates Symmetry
Bilateral
Function of the pectoral Fins
Steer and control depth
Function of the Caudal Fins
Power