Altering patterns of gene expression in prokaryotes would most likely serve an organism's survival by
a. allowing each gene to be expressed an equal number of times organizing gene expression, so that genes are expressed in a given order
b. allowing an organism to adjust to changes in environmental conditions
c. allowing environmental changes to alter a prokaryote's genome
d. allowing young organisms to respond differently than more mature organisms

Allowing the organism to adjust to changes in environmental conditions.

Explanation:

Gene may be defined as the functional segment of the DNA that codes for the particular protein and responsible for the genotype and phenotype expression of the organisms.

The gene expression of the particular genes can be modified according to the activity and the external environment of the organism. The altered expression of gene is important as it helps the prokaryotic organism to adapt better in their environment.

Thus, the correct answer is option (b).

are there any answer choices

organ system-an organ system is a group of organs that work together to perform one or more functions. each does a particular job in the body, and is made up of certain tissues.