Which milestone in the evolution of animals classifies them as either vertebrates or invertebrates?

Ineed some everybody. the production of cells during mitosis into specialized function is called: recombination or differentiation

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.

You see a white marker with an orange circle and black lettering. what does this marker tell you