In Both Tunicates and Cephalochordates,the Ventral Side of the Branchial

Q34: Appendicularians<br>A)are sexually mature individuals that have retained

Q35: While several invertebrate groups (phyla)have in the

Q36: Pikaia gracilens,the earliest known chordate collected from

Q37: Outline the process that may explain how

Q38: The skeletal rod found in all chordates

Q40: The ammocoete larvae is important in zoology

Q41: Larval and adult tunicates look virtually nothing

Q42: One overriding advantage of the endoskeleton of

Q43: The lancelets or Branchiostoma are found<br>A)very rarely

Q44: The early vertebrate fossils belong to an