1. after which animals did mammary glands develop?
a. lizard
b. pigeon
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1. after which animals did mammary glands develop?
a. lizard
b. pigeon
c. salamander
d. mouse
2. based on the cladogram
what animals does not have jaws?
a. perch
b. hagfish
c. lizard
d. salamander
3. based on the cladogram
which animals have lungs?
a. hagfish
b. perch
c. salamander
d. both a and b
Answers: 2
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