What is the true importance of cells, its functions, and its structures?

Which of these organisms have the greatest amount of cell specialized

Asmall number of finches are removed randomly from the wild and placed in a protected bird area. they are given as much food as they need and have plenty of space. why would natural selection not occur in this population? a. there is no reason for genetic mutation to occur. b. the birds compete for limited resources, c. the population has not reached carrying capacity. d. there is no genetic variation in the finches.

Why is it important that fibrin is insoluble in water?