Multiple Choice
The lancelets or Branchiostoma are found
A) very rarely and are about extinct.
B) as parasites inside the tracts of fish.
C) commonly in the sandy bottoms of coastal waters around the world.
D) in tropical freshwater streams.
E) near deep ocean thermal vents.
Correct Answer:
Verified
Correct Answer:
Verified
Q38: The skeletal rod found in all chordates
Q39: In both tunicates and cephalochordates,the ventral side
Q40: The ammocoete larvae is important in zoology
Q41: Larval and adult tunicates look virtually nothing
Q42: One overriding advantage of the endoskeleton of
Q44: The early vertebrate fossils belong to an
Q45: The urochordates are enclosed in a nonliving
Q46: Cephalochordates<br>A)are small fish-like,freshwater animals.<br>B)have a notochord only
Q47: The characteristics of the chordates and the
Q48: Outline the five chordate features.What is the