Final answer:
The difference between determinate and indeterminate cleavage lies in the predictability of cell division outcomes and the fate of cells during development. The correct answer is: b. Unequal cell division; equal cell division.
Step-by-step explanation:
The difference between determinate and indeterminate cleavage lies in the predictability of cell division outcomes and the fate of cells during development. The correct answer is: b. Unequal cell division; equal cell division. Determinate cleavage is characterized by predictable and specific cell fates resulting from each cell division. The developmental fate of each cell becomes progressively more restricted, leading to the differentiation of specialized cell types. Indeterminate cleavage, on the other hand, involves cell divisions where the fate of the daughter cells is not predetermined. Each cell produced has the potential to develop into a complete organism. This is common in early embryonic stages, particularly during the formation of blastomeres, and is often associated with organisms capable of regeneration. So, option b correctly captures the distinction between determinate and indeterminate cleavage.