Match the terms to their definition. 1. analogous small or underdeveloped 2. embryo having a similarity attributable to a common ancestor 3. homologous the beginning or developing stage of an organism 4. morphology form and structure of an organism or any of its parts 5. vestigial being related or showing a close similarity

1. The beginning or developing stage of an organism- goes with EMBRYO

2. Being related or showing a close similarity- goes with ANALOGOUS

3. Form and structure of an embryo or any of its parts- goes with EMBRYOLOGY

4. Having a similarity attributable to a common ancestor- goes with HOMOLOGOUS

5. Continuous line of descent- goes with LINEAGE

6. Evolution above the species level- goes with MACROEVOLUTION

7. Evolution at or below the species level- goes with MICROEVOLUTION

i think it would be b. tissue because an organ system is a group of organs that work together to perform one or more functions. each does a particular job in the body, and is made up of certain tissues.