Closely related species are grouped together into                   (singular,                ). By the way, what is the singular of “species”?

A B C D E F G DEFG Which of the following forms a monophyletic group? (see figure) D, E, and F E, F, and G C and D A, B, and D

Sort the following photos into three taxa (groups). Each taxa must contain only four creatures - no repeats! HINT: Figure out what physical trait is always found in all of the creatures in one taxon, J but is never found in any member of a different taxon. "Wings" does not work! Letters in: Taxon 1 = Taxon 2 = Taxon 3 = E K F L What physical trait do they all share? What physical trait do they all share? What physical trait do they all share?

Among the ingroup species A-D, species A shares the largest number of derived traits with species C. What term best describes species C relative to species A?  options:   ancestor   homologous species   outgroup   sister species