Subphylum Cephalochordate
Cephalochordates include
3 genera
2 genera
5 genera
6 genera
2 genera
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Cephalochordates lack aA. liver
B. true heart
C. kidney
D. tail
How many numbers of species are included in cephalochordates?
A. 42 species
B. 44 species
C. 45 species
D. 48 species
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 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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