As seen in the examples above, however, mutations can be devastating. Mutations such as muscular dystrophy and epilepsy can cause developmental delays, structural abnormalities, or other effects. Pause for a minute and ask yourself a few questions:

are there any answer choices

the answer is d (apex) good luck : ))

is it multiple choice?

answercells,tissues,organs,organ,system-organism;

levels of biological organization; organism,population,community,ecosystem,biome,biosphere,

hope this .good luck