Shellfish vs Crustaceans
Nws yooj yim to taub qhov sib txawv ntawm Plhaub thiab Crustaceans thaum koj kawm cov hom uas tau muab faib rau hauv txhua qhov ntawm no. Ob lub plhaub thiab crustaceans yog invertebrates thiab muaj qhov yooj yim, mos lub cev nrog exoskeletons. Exoskeleton tseem ceeb heev los tiv thaiv lawv lub cev sab hauv. Feem ntau ntawm cov tsiaj yog dej thiab pom nyob rau hauv ob qho tib si dej qab zib thiab dej hiav txwv hav zoov. Txawm li cas los xij, qee cov ntses muaj nyob hauv cov chaw nyob hauv av. Ob lub plhaub thiab crustaceans yog qhov tseem ceeb ua zaub mov rau tib neeg. Ntawm no, tej zaum koj yuav tau pom tias txhua yam uas tau hais txog tam sim no yog qhov sib xws, tsis yog qhov txawv. Yog li, lawv puas yog ib qho thiab tib yam? Tsis yog tiag. Qhov zoo sib xws yog vim qhov tseeb tias crustaceans kuj yog hom ntses plhaub. Cia peb kawm txog ob tug tsiaj no thiab qhov txawv ntawm lawv nyob rau hauv me ntsis ntxiv.
Plhaub yog dab tsi?
Shellfish yog ib lo lus dav siv rau crustaceans thiab mollusks nrog exoskeletons los yog calcareous plhaub. Crustacean shellfish muaj xws li crabs, prawns, crayfish, crayfish thiab lobsters, whilst mollusk shellfish muaj mussels, oysters, cockles, scallops, clams, thiab lwm yam. Feem ntau hom ntawm shellfish muaj nyob rau hauv marine chaw nyob. Feem ntau ntawm cov ntses ntses yog siv los ua zaub mov los ntawm tib neeg vim lawv cov khoom noj muaj txiaj ntsig zoo. Txawm li cas los xij, shellfish ua rau cov zaub mov tsis haum rau hauv lub cev.
Crustaceans yog dab tsi?
Crustaceans yog ib pawg ntawm arthropods uas muaj cephalothorax tseem ceeb thiab lub plab. Lub xub ntiag ntawm carapace, uas nyob rau hauv lub cephalothorax yog tshwj xeeb rau tag nrho cov crustaceans. Biramous appendages muaj nyob rau ntawm txhua ntu ntawm lub cev. Lub larvae ntawm crustaceans hu ua nauplius. Muaj txog 67,000 hom muaj nyob hauv chav kawm no. Tag nrho cov crustaceans pom tsuas yog nyob rau hauv marine thiab dej tshiab ib puag ncig. Lub taub hau ntawm crustaceans muaj ob khub antennae, ib khub ntawm mandibles thiab ob khub ntawm maxillae. Lawv kuj muaj stalked compound ob lub qhov muag rau lub zeem muag thiab gills ua cov kab mob ua pa. Cov crustaceans me me pub rau planktons, yog li ua lub luag haujlwm tseem ceeb hauv cov khoom noj khoom haus thawj. Piv txwv li rau crustaceans muaj xws li prawns, lobsters, crabs, shrimps thiab barnacles. Cov crustaceans loj dua yog qhov tseem ceeb ntawm kev lag luam raws li cov khoom noj.
Dab tsi yog qhov txawv ntawm Plhaub thiab Crustaceans?
• Shellfish muaj crustaceans thiab mollusks (feem ntau crustaceans suav hais tias yog shellfish).
• Crustaceans muaj chitinous exoskeleton, whereas shellfish muaj chitinous los yog calcareous exoskeleton.
• Plhaub suav nrog crabs, prawns, crayfish, crayfish, lobsters, mussels, oysters, cockles, scallops, calms, whereas crustaceans muaj prawns, lobsters, crabs, cws thiab barnacles.
