Answer:
The gastrovascular cavity is a structure found in primitive animal phyla. It is responsible for both the digestion of food and the transport of nutrients throughout the body. The cavity has only one opening to the environment. Food goes in and waste comes out that same opening, making it a two-way digestive tract
Explanation:
A. they are drugs or hormones used to prevent osteoporosis
i am pretty sure its C. H+ im sorry if im wrong tho :(
