The human body can make most types of fats it needs from other fats or raw materials. That isn't the case for omega-3 fatty acids. These are essential fats the body can't make from scratch but must be gotten from food.
Answer:
The food web provides a better model of an ecosystem because the food web is a model between MANY different consumers and producers in an ecosystem.
Explanation
While the food chain is a model for just one consumer and producer. energy moves up a food chain.
Its is c<span>ytoplasm to that answer</span>
The answer is carbon dioxide. im 100 percent this is right<span />