Many, too many to name here. The freshwater black basses, allied to sunfish, include:
largemouth bass
smallmouth bass
spotted bass
coosa bass
Suwannee bass
shoal bass
Guadalupe bass
You have to be more specific with your question. There are many species of fish called "bass", some are truly bass, while others (such as the Micropterus family of sunfish, like largemouth and smallmouth) are really large sunfish.
There are both freshwater and saltwater bass species.
Bass is a name shared by many different species of fish. The term encompasses both freshwater and marine species. All belonging to the large order Perciformes, or perch-like fishes, and in fact the word bass comes from Middle English bars, meaning "perch."
Literally millions. The largemouth bass is America's favorite gamefish, and the other species in the genus Micropterus are also very popular.
No. There are several extant species.
Freshwater bass include; Sunfish Family- largemouth, smallmouth, cousae, redeye, spotted, and Suwannae bass. Morone family- striped, white bass, white perch, yellow bass. Saltwater basses; black sea bass, jewfish, grouper species, sand bass, striped bass. Note; The striped bass has been introduced into many freshwater lakes, because it can live in fresh or saltwater.
The speckled peacock bass is the largest species and can grow up to 100 centimeters (three feet, four inches) in length. http://en.wikipedia.org/wiki/Peacock_bass
A big largemouth would eat a smaller fish of any species.
No. It is one of the most popular forms of fishing, and the bass species are all doing well.
No. It's a very common species.
The speckled peacock bass is the largest species and can grow up to 100 centimeters (three feet, four inches) in length. http://en.wikipedia.org/wiki/Peacock_bass
Both..More common in warm water environments.