It is an order of small crustaceans.
Yes, all crustaceans are invertebrates.
All cuttlefish are predatory. They eat small fish and crustaceans for the most part.
All cuttlefish are predatory. They eat small fish and crustaceans for the most part.
Yes, all crustaceans have hearts.
No - they are crustaceans
small fishes
Wikipedia: Seahorses eat small shrimp, tiny fish, crustaceans and plankton.
Crustaceans, worms, small fish and small clams
yes
Most if not all jellyfish are carnivorous.Jellyfish are carnivorous, eating plankton, crustaceans, fish eggs, small fish and other jellyfish.
maybe other small fish Mainly small mollusks and crustaceans.