using the terms homologous and analogous, identify which group of structure provides evidence for a common ancestor. explain

Homologous structures.

Explanation:

Homologous structures provide evidence for common ancestry because the organs are similar in position, structure, and evolutionary origin in homologous but different in their function, while on the other hand, the analogous structures indicates that similar pressures on organisms can produce similar adaptations among organisms. so we can say that homologous structure provides evidence for a common ancestor of different organisms.

answer; i believe the correct answer is (sporophyte);

"do a testcross with a homozygous recessive plant."