Chordates have a complete digestive system and a closed circulatory system.
All chordates have jaws.
Animals with jaws have a complete digestive system and a closed circulatory system.
What has a complete digestive system and a closed circulatory system?
(a) graptolites
(b) Veins and arteries.
(c) sunlight
(d) graphite
(e) fur seals
(f) viruses
(g) animals with jaws
(h) Most plants