Salmon is fish.
smoked salmon
A salmon group is called a school.
Fruit
Mexican Food is a cooking style not a food group. Mexican food items fall into all of the food groups.
A school of salmon is still called salmon. The term "school" refers to the entire group of fish. If there are several different species of salmon in the group, (e.g. coho salmon, sockeye salmon, chum salmon) they may be called "fishes". The salmon specifically are just called salmon.
Coconuts belong in the fruits food group, however it is a seed.
it does.
Carbohydrate
A carrot is a vegetable.
Salmon is a fish.
a group
A group of salmon can be called a "school", a "shoal", or a "run".