Embryos Show Relationships Practice Test

A student compares embryo diagrams from two species at Stage 1 and Stage 2 (comparable stages shown for both species). Embryological similarities can suggest relationships among species. The embryos share pharyngeal arches at Stage 1 and limb buds at Stage 2.

Which statement about embryological similarity is supported by the evidence in the images?

A lab compares embryo diagrams from three species at the same stage (Stage 3). Embryological similarities can suggest relationships among species. The embryos show labeled shared structures (digits and tail).

Which statement about embryological similarity is supported by the evidence in the images?