I need this really quick!
A scientist discovers a new species and compares its embryos to the embryos of several different mammals. The new organism doesn't have pharyngeal arches, or a, notochord, and it doesn't go through the Carnegie stages of development. From this information, what can the scientist conclude?
A. It's not an animal.
B. It's not a mammal, but it's a different type of vertebrae.
C. It's a vertebrae because it's a mammal.
D. It's not a mammal or a vertebrae.
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