What specializations might allow one tissue to produce a hormone, and another to facilitate nutrient exchange? is it possible for the same organ to serve both these functions?.

Yes they are correct good day

Ithink b hope that

In some developing nations the percentage of the animal protein from fish in the diet can be as high as 25 percent.  about 85% of fish caught is used for human consumption.  the remainder is converted into fishmeal and fish oil.