How is a largemouth bass a danger to an environment?

What trophic level is are the following animals- squirrel- shark- deer -rabbit- spider- oak tree -coyote- water moccasin? What temperature does a guppy fish needs? What is the difference between white perch and yellow perch? How do you tell a male Mexican walking fish from a female? What type of fish need heaters? Which came first Egg McMuffin or filet o fish? How can you tell when a guppy is about to have babies? How do you survive a raptor attack? How are sharks becoming extinct? What do yellow tangs eat? Will alum kill aquarium snails? Why do the Maidu hold a salmon festival each year? How do you make sea water for a snail? What sense organ does a salmon use to find the river it was born in? Can frogs sprout from mud in ponds? Are fish considered livestock or agriculture? Are sharks teeth replaceable? How did the Haida fish? What is most difficult to fossilize fish mammals plants or snail? Is bamboo shrimp a nekton?