Yes, dolphins are mammals.
They all have chromosome disorders (irregular number, extra or missing chromosomes)
It means that they are not like pre-set blueprints. They react differently according to changes in the environment.<span />
Our diets are composed of protein, fat and carbohydrates. Digestive enzymes<span> break down protein, carbohydrates and fats into smaller and smaller components.</span>
The answer is b. the decreased migration of pests and pathogens