chav kawm Arachnida suav nrog ntau pawg ntawm arthropods: kab laug sab, scorpions, zuam, mites, harvestmen, thiab lawv cov kwv tij txheeb ze. Cov kws tshawb fawb piav txog ntau dua 100,000 hom arachnids.
Yuav ua li cas ntawm cov arthropods hauv qab no yog cais raws li ib tug arachnid?
Class Arachnida (uh-rak-nid-uh), kab laug sab, zuam, mites, scorpions thiab lwm yam. Qhov no yog ntau hom chav kawm uas belongs rau subphylum ntawm Arthropoda hu ua Chelicerata.
Dab tsi yog arachnids cais raws li?
Txhua arachnids muaj nyob rau hauv subphylum (ib faib ntawm Arthropoda) hu ua Chelicerata, uas muaj kwv yees li 65,000 hom piav qhia (~ 8, 000 hauv North America). Lawv yog cov yam ntxwv los ntawm muaj ob lub cev cheeb tsam, ib cephalothorax thiab lub plab mog.
3 piv txwv ntawm arachnids yog dab tsi?
Tsis yog txhua tus arachnids yog kab laug sab. Lwm yam piv txwv yog scorpions, mites, zuam, scorpions cuav, thiab cov neeg sau qoob. Arachnids muaj ob ntu ntawm lub cev. Tab sis cov no tuaj yeem zoo ib yam li cov zuam.
Crab yog arachnid?
Tsis yog, nws yuav yuam kev hu ua King Crab, lossis Horseshoe crab, tab sis qhov tseeb nws yog ib tug tswv cuab ntawm tsev neeg Arachnid- yog li nws cov txheeb ze ze tshaj plaws yog scorpions thiab kab laug sab.. … Crustacea, xws li crabs, lobsters thiab cw, muaj ntau ob txhais ceg, ob lub cev faib thiab ob khub ntawm kav hlau txais xov.
