Question 6
Which of these is NOT a true statement?
Select one:
a. All chordates are vertebrates.
b. All vertebrates are chordates.
c. Tunicates and lancelets are invertebrate chordates.
d. Echinoderms and chordates are deuterostomes.
e. Sea squirts are invertebrate chordates.
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Question 7
Which of the following is NOT a unique characteristic of chordates at some time in their life history?
Select one:
a. a dorsal notochord
b. a ventral hollow nerve cord
c. pharyngeal pouches
d. gill clefts