Respuesta :
The answer is B. Whether the process of cell differentiation begins early or late.
Based on whether early or late cell differentiation, higher invertebrates are classified as indeterminates or determinates.
Indeterminates have indeterminate cleavage. Indeterminate cleavage means that cells remain for a longer period indeterminate, and it occurs later in the embryo development.
On the other hand, determinates have determinate cleavage. In this type of cleavage, a fate of different cells is determined early in the development process.