What are homologous structures in different species evidence of?

What would happen to the nutrients in an ecosystem if decomposers, such as bacteria, didn’t exist there?

What is the number of phosphates in an atp molecule

What is true of all organisms in the kingdoms protista, plantae, fungi, and animalia? a. they are multi-celled. b. they are photosynthetic. c. they have cells that contain membrane-bound organelles. d. they contain cells that lack membrane-bound organelles.