Answer :
Final answer:
A digestive tract, seen in more complex organisms, has a specialized region for food storage.
Explanation:
The characteristic of having a specialized region where ingested food may be stored is associated with a digestive tract. This is observed in more complex animals, including vertebrates. The digestive tract, also known as an alimentary canal, has two openings: a mouth for ingesting food, and an anus for eliminating waste, which allows for a one-way flow of food and the specialization of different regions of the tract.
On the other hand, a gastrovascular cavity is typically a blind tube or cavity with only one opening, serving as both a 'mouth' and an 'anus'. Here, food is taken into the cavity, enzymes are secreted for breaking down the food, and the cells lining the cavity absorb the nutrients. This system, however, does not have a specialized region for food storage as both food intake and waste disposal happen through the same opening.
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