Select the correct image. The images show the stages of human development. At which stage does cell differentiation start?

2. if scientists identify an animal with bilateral symmetry and no segmentation, which phylum can it definitely not belong to? a. roundworms b. annelids c. mollusks d. flatworms

Variety of living organisms; includes genetic, species, and ecological types.

Whats one way that rocks do not follow the typical rock cycle pathway?