Tam sim no peb paub tias txhua kab kuj yog arthropods. Arthropods kuj muaj ib qho nyuaj exoskeleton, zoo li koj yuav pom ntawm roob ris lossis ntawm kab. Lawv tsis muaj pob txha hauv lawv lub cev zoo li tib neeg. Hloov chaw, lawv 'pob txha' nyob rau sab nraud, zoo li lub tsho tiv thaiv, uas yog vim li cas nws thiaj li hu ua exoskeleton.
exoskeleton yog dab tsi?
Exoskeleton, lub hnab ntawv nruj lossis cov ntaub ntawv uas txhawb nqa thiab tiv thaiv cov nqaij mos ntawm qee yam tsiaj. Lub sij hawm suav nrog cov tsev nyob calcareous ntawm sessile invertebrates xws li clams tab sis feem ntau yog siv rau chitinous integument ntawm arthropods, xws li kab, kab laug sab, thiab crustaceans.
Puas exoskeleton yog kab?
Kab muaj exoskeletons ua los ntawm cov khoom hu ua chitin. Cov exoskeletons ntawm crabs, lobsters, cws, kab laug sab, zuam, mites, scorpions, thiab lwm yam tsiaj kuj yog ua los ntawm chitin. Thaum exoskeletons nyuaj thiab tawv, lawv kuj muaj cov pob qij txha, los yog khoov tau.
tsib hom arthropod yog dab tsi?
Arthropods ib txwm muab faib ua 5 subphyla: Trilobitomorpha (Trilobites), Chelicerata, Crustacea, Myriapoda, thiab Hexapoda.
Dab tsi yog tsiaj txhu nyob rau arthropod?
Ntau hom kab paub muaj nyob hauv phylum Arthropoda- kab, kab laug sab, scorpions, centipedes, thiab millipedes ntawm av; crabs, crayfish, cws, lobsters, thiab barnacles hauv dej (Fig. 3.72). Arthropods yogsuav hais tias yog tsiaj txhu muaj kev vam meej tshaj plaws hauv ntiaj teb.
