They can eat it or sell them to make profits!!
it is a food chain that is on land for example lollies are part of the land food chain but fish aren't part of the land food chain they are part of the aquatic food chain.
Native species of crayfish that are are a normal part of the ecosystem are not harmful. But there are several invasive species, like the rusty crayfish, that can kill off native crayfish and other crustacians. The rusty crayfish has a thicker shell and less "meat" and therefore are are not a good part of the food chain depriving the ecosystem of the nutrients from the crustacians it replaces. Invasive species also tend to destroy large amounts of water plants that further degrade the food chain. Also there is an infection that occasionally occurs in crayfish that can spread to other animals but this is usually a normal part of the life cycle and not neccasarily harmful.
they are to be at the top mof their food chain.
Every animal is in the food chain
Second level of the food chain.
A bear on the top of the food chain.
Food
Yes, they are as anything can be part of the food chain.
what part of the food chain are tiger salamanders
Basically everything is part of the food chain... So yes
Chitinous teeth aid in food digestion by helping to further break down food to smaller particles.