A. Connective
B. Epitelial
C. Nervous
D. Muscle
Hemichordate and invertebrates chordates
Hemichordate and invertebrates chordates
A. Myxini
B. Ascidiacea
C. Thaliacea
D. Osteichthyes
A. internal
B. external
C. not defined
D. Both A,B
A. Elementary
B. Digestive
C. Respiratory
D. None of these
A. ventral
B. Endodermal
C. Ectodermal
D. Mesodermal
A. water
B. Blood
C. Gas
D. None of these
A. Bronchi
B. Aorta
C. Venteriopore
D. Artriopore
A. Chordata
B. Hemichordata
C. Mollusca
D. None of these
A. Round
B. Tape
C. Marine
D. Fresh water
A. Full
B. Half
C. Complete
D. None of these