Multiple ChoiceWhich chordate characteristics are present in a sea squirt (tunicate) during its larval stage?72views
Multiple ChoiceWhich of the following chordate traits appeared first in evolutionary history?434views
Multiple ChoiceWhich trait is shared by all vertebrates except cyclostomes at some point in their development?461views
Multiple ChoiceWhich of the following chordates is most likely to look the least like other chordates?561views
Multiple ChoiceWhich of the following are the four key features that characterize all chordates?708views
Multiple ChoiceIn which type of chordate is the spinal cord surrounded by a backbone composed of cartilage or bone?92views
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?88views
Multiple ChoiceWhich of the following is NOT one of the five key characteristics of chordates?573views
Multiple ChoiceVertebrates are distinguished by the possession of which of the following structures?717views