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Question 1 = B Question 2 = B Question 3 = D Question 4 = D Question 5 = D Question 6 = C • On a phylogenetic tree, what happened at a ‘node’? – A) an ancestral species gained a new adaptation – B) an ancestral species failed to evolve – C) speciation (i.e., an ancestral species split into two descendant lineages) Question 7 = D • According to the tree at the left – A) seals are ancestral to horses – B) whales are the most evolved of the taxa shown – C) horses evolved into giraffes – D) none of the above