Question

lancelet (outgroup) lamprey tuna salamander turtle leopard hair amniotic egg four walking legs jaws vertebral column 4. what trait separates lampreys from tuna on this cladogram? 5. what separates a salamander from a turtle? 6. which

Explanation:

Question 4

To determine the trait separating lampreys from tuna, we analyze the cladogram. Lampreys branch off before the "Jaws" trait, while tuna (and subsequent organisms) have jaws. So the trait separating them is the presence of jaws (tuna has jaws, lamprey does not).

For salamander vs. turtle, we look at the cladogram. Salamander branches off before the "Amniotic egg" trait, and turtle (along with leopard) has an amniotic egg. So the trait separating them is the amniotic egg (turtle has it, salamander does not).

Answer:

Jaws (Lampreys lack jaws, while tuna have jaws, as indicated by the "Jaws" trait node on the cladogram separating their lineages)

Question 5