It all depends on what species of lobster and crab your talking about.
In general if your referring to the standard lobster and crab that end up on our plate for dinner, then yes you can have both of them in an aquarium as long as its big enough.
No. Glo fish are freshwater organisms and lobsters are saltwater organisms. And if they could live in the same water, one eats the other.
Lobsters are saltwater and crayfish (crawdads) are freshwater.
Exoskeletons and claws, but lobsters have ten legs while crabs have eight.
American lobsters do not live in groups per say. American Lobsters live the single life but it is possible that a large number of single lobsters reside in the same area.
no
they both have hard shells and are highly equipped with protiens.
They're the same thing.
Cockroaches are distantly related to arthropods such as spiders (arachnids) and crustaceans (shrimp, crabs and lobsters). Cockroaches are insects (Class Hexapoda) and lobsters are decapod crustaceans (Class Crustacea). The term 'roaches of the sea' reflects the behavior of lobsters as omnivorous scavengers. Cockroaches will eat almost anything organic and so will lobsters. They clean up the dead and dying plants and animals in their environment.
Only if you provide dressers for both.
yes, at least with some types of crabs. clowns will do well with hermit crabs, though I'm unsure with other varieties. clown fish naturally live with crabs, but they may need an anemone if it is a particularly aggressive crab.
they are all living things- live underwater- bilateral (i guess for a jellyfish)
No, A Seahorse can only live in saltwater and a glofish can only live in freshwater. Seahorses do not do well with other fish anyways.