Final answer:
The cytoplasm in a whitefish blastula is the gel-like substance inside cells that contains organelles and where many cellular processes occur.
Step-by-step explanation:
The whitefish blastula is a stage in embryonic development where the zygote undergoes mitotic cell divisions to form blastomeres. In the whitefish blastula, the location of the cytoplasm can be observed in the individual cells that make up the blastula. The cytoplasm is the gel-like substance inside cells that contains organelles, such as the nucleus, mitochondria, and ribosomes, and where many cellular processes occur.