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Biology 13 Online
OpenStudy (anonymous):

While studying evolution, a student comes across a cladogram that includes clades like amphibia, reptilia, aves, and mammalia. What must be the basal clade?

OpenStudy (anonymous):

chordata. its not plantae. Also these animals have spinal cords so its chordata. if thats even an answer choice:) what are the answer choices?

OpenStudy (msambergrace):

Tetrapoda.....they all come under phylum chordata >craniates> gnathostomata> tetrapoda

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