A shed carapace of a lady crab, part of the hard exoskeleton Body structure of a typical crustacean – krill. The body of a crustacean is composed of segments, which are grouped into three regions: the cephalon or head, [5] the pereon or thorax, [6] and the pleon or abdomen. [7]

2025年4月7日 · Crustacean, any member of the subphylum Crustacea, a group of invertebrate animals consisting of some 45,000 species distributed worldwide. Crabs, lobsters, shrimps, and wood lice are among the best-known crustaceans, but the group also includes an enormous variety of other forms without popular names.

American lobster Edible shrimp. Crustaceans are a subphylum of arthropods with 67,000 described species.They are part of the phylum Arthropoda.Crustaceans include crabs, lobsters, crayfish, shrimp, krill and barnacles.

2019年12月13日 · Diet and Behavior . Within the literally thousands of species, there is a wide variety of feeding techniques among crustaceans. Crustaceans are omnivores, although some species eat algae and others like crabs and lobsters are predators and scavengers of other animals, feeding on those that are already dead.

The meaning of CRUSTACEA is arthropods that are crustaceans. capitalized: a large class of mostly aquatic arthropods that have a chitinous or calcareous and chitinous exoskeleton, a pair of often much modified appendages on each segment, and two pairs of antennae and that include the lobsters, shrimps, crabs, wood lice, water fleas, and barnacles

2023年2月14日 · Dilansir dari Encyclopedia Britannica, Crustacea atau krustasea adalah sekelompok hewan invertebrata yang terdiri dari sekitar 45.000 spesies yang tersebar di seluruh dunia terutama dalam ekosistem air.

Tubuh krustasea terdiri dari dua bahagian iaitu kepala dada yang menyatu (sefalotoraks) dan perut atau badan belakang (abdomen). [1] BaHAgian sefalotoraks dilindungi oleh kulit keras yang disebut karapas dan 5 pasang kaki yang terdiri dari 1 pasang kaki capit (keliped) dan 4 …