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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