Multiple ChoiceWhich chordate characteristics are present in a sea squirt (tunicate) during its larval stage?13views
Multiple ChoiceWhich of the following chordate traits appeared first in evolutionary history?252views
Multiple ChoiceWhich trait is shared by all vertebrates except cyclostomes at some point in their development?267views
Multiple ChoiceWhich of the following chordates is most likely to look the least like other chordates?332views
Multiple ChoiceWhich of the following are the four key features that characterize all chordates?452views
Multiple ChoiceIn which type of chordate is the spinal cord surrounded by a backbone composed of cartilage or bone?22views
Multiple ChoiceWhich of the following is NOT one of the four key derived characteristics shared by all chordates at some stage of their life cycle?19views
Multiple ChoiceWhich of the following is NOT one of the five key characteristics of chordates?346views
Multiple ChoiceVertebrates are distinguished by the possession of which of the following structures?468views