Question

a cladogram can be viewed as \sets within sets\ of derived traits. which features distinguish the clade containing mice and humans from the other clades in this cladogram? multicellular with legs multicellular with hair multicellular with a backbone multicellular multicellular with a backbone, legs and hair

Explanation:

A cladogram shows evolutionary relationships. Mice and humans are mammals. Mammals are multicellular, have a backbone (vertebrate), legs (in most cases, though humans have modified "legs" as limbs for bipedalism), and hair. Earthworm is multicellular but no backbone. Tuna is multicellular, has a backbone but no legs or hair. Lizard is multicellular, has backbone and legs but no hair. So the traits that distinguish the clade of mice and humans (mammals) from others are being multicellular, having a backbone, legs, and hair.

Answer:

multicellular with a backbone, legs and hair