Why is a shark a carnivore?

Can guppy fish eat cooked chicken? What effect does food have on the amount of food that fish eat? Where do spiny dogfish sharks live? Why are the continental shelves the areas of the ocean richestn in marine life? Why should you feed your fish 1 day, then skip a day and then feed you fish again? How do stingrays escape a shark attack? How does a sick iridescent shark look? Can goats eat salt? What were the rainbow patties on SpongeBob called? Can you eat sand dollars? What social behavior is displayed by Betta fish? Is a koi fish a wild animal? What is a controversial current-carried carp catcher? What kind of water do sharks prefer the most? How does king salmon taste like? Is air dry clay which is already hard safe to put in a fish tank? Does the male or female whale shark nurture their young? Do scavengers live in the coral reef? What is the gestation period of Whale sharks? What the Spiny dogfish looks like?