1000
Yes, crustaceans are considered to be animals. Crustaceans are a group of animals called arthropods and include shrimp, crabs, and lobster. There are more than 67,000 species of crustaceans in the world today.
2
Arthopada is the phylum, crustacean is the class, and from there, there are many families, genus', and species'
500,at least that's what I've heard on a site.
Yes, they are.
too many species to list... thousands of species of bacteria, fungi, worms, slugs, snails, starfish, crustaceans.
Crustaceans are a completely different species of Arthropod, because they have 10 legs, pupils in their eyes, etc. Most types of crustaceans also live in the water, although a few species of insects also live underwater.
Some things that would be considered crustaceans are things that have hard shells and live in the ocean. For example, shrimp, crabs, lobster, and mantis shrimp are all crustaceans.
Fish Crustaceans Mammals
Many have claws and spines, and all have a shell of varying thickness, according to species. Some have protective coloration, as well.
They were always there. there are many copepod species found only in America so they probably didn't come from elsewhere.
Crabs, lobsters, shrimps, isopods, amphipod, banicle. There is more