A. Notochord
B. Nerve card
C. Postanal tail
D. All of these
Hemichordate and invertebrates chordates
Hemichordate and invertebrates chordates
A. Lungs
B. Gills
C. Pharyngeal slits
D. Trachea
A. Reptilia
B. Aves
C. Mammalia
D. Amphibia
A. Filter
B. Water
C. Blood
D. Gases
A. Granules
B. Monoecious
C. Diecious
D. Triecious
A. Endostyle
B. Thyroid gland
C. Stomach
D. Both A,B
A. Simple
B. Unidirectional
C. Bidirectional
D. All of these
A. Tunicate
B. Lancilets
C. Ciliates
D. Archons
A. Thaliacea
B. Urochordata
C. Vertebrata
D. None of these
A. Notochord
B. Nerve card
C. Postanal tail
D. All of these