Subphylum Cephalochordate
How many numbers of species are included in cephalochordates?
42 species
44 species
45 species
48 species
45 species
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Cephalochordates lack aA. liver
B. true heart
C. kidney
D. tail
Size of smaller cephalochordates is approximately
A. 2 cm long
B. 5 cm long
C. 6 cm long
D. 15 cm long
Cephalochordates are also called:
A. lancelets
B. backbone bearing organisms
C. head bearing organism
D. hemimetabolus
Cephalochordates include
A. 3 genera
B. 2 genera
C. 5 genera
D. 6 genera
Cephalochordates have a reduced coelom as compared to other
A. animals
B. chordates
C. annelid
D. platyhelminthes
Atrium opening to outside of body in cephalochordates is called:
A. anus
B. excrertopore
C. atriopore
D. operculum
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