Oliver has inherited genes that put him at risk for developing diabetes, but because of his healthy diet and exercise he is not diabetic. this example demonstrates that human characteristics, including diabetes, are

The given blank can be filled with epigenetics.

Explanation:

The study of inherited alterations in gene expression, which do not comprise modifications to the principal sequence of DNA is known as epigenetics. It refers to a variation in phenotype without modification in genotype that in turn influences how the cells read the genes.  

Epigenetic change refers to a natural and regular happening, however, it can also be affected by many elements like the environment or the lifestyle, age, and disease state.  

answer: accepted answer: aquatic animals use the oxygen dissolved in water to carry out respiration. since the amount of dissolved oxygen in water is low as compared to the amount of oxygen in the air, therefore the rate of breathing in aquatic animals is much faster than it is in terrestrial animals.

explanation: