Although adult tunicates are stuck to the ocean bottom , they are considered early relatives of vertebrates because
Select one :
a . tunicate gill slits are like ribs .
b . tunicate adults have a notochord .
c . tunicate larvae have a notochord .
d . all vertebrate embryos go through a stage that resembles adult tunicates .
e . tunicate adults have all four chordate characteristics .
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Question 5
Endothermic animals with four-chambered hearts include the
Select one :
a . amphibians .
b . reptiles .
c . fish .
d . arthropods .
e . birds .
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