2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
A spinneret yog ib qho kab laug sab-kiv ntawm kab laug sab lossis kab laug sab ntawm kab. Qee cov kab laus kuj muaj spinnerets, xws li cov yug ntawm lub forelegs ntawm Embioptera. Spinnerets feem ntau yog nyob rau hauv qab ntawm kab laug sab opisthosoma, thiab feem ntau yog segmented.
spinnerets nyob rau kab laug sab nyob qhov twg?
Cov spinnerets nyob, tsis yog tom qab kawg li lawv nyob rau hauv feem ntau kab laug sab, tab sis txog nruab nrab ntawm lub ventral nto ntawm lub plab, kaw tom qab ob lub ntsws thiab tawm deb ntawm lub anus.
Dab tsi spinnerets tsim?
Spinnerets yog siv rau kev tsim khoom ntawm silk, cov fiber ntau uas siv los ua webs, draglines, qe hnab, thiab ntau dua. Yuav kom nkag siab zoo txog cov txheej txheem no, peb yuav tsum mus rau hauv lub cev ntawm kab laug sab.
Vim li cas kab laug sab siv spinnerets?
Thaum cov lo lo ntxhuav khov lawm, kab laug sab siv cov qauv hu ua spinnerets sab nraud ntawm lawv lub plab los tsim cov fiber ntau, tseem hu ua gossamer. Cov spinnerets yog cov kab laug sab siv los tsim lawv cov kab lo lo ntxhuav, thiab lawv muaj spigots nyob rau hauv lawv uas txuas mus rau cov qog lo lo ntxhuav.
Pob kab laug sab muaj antennae?
Kab laug sab, thiab lwm hom hauv pawg Arachnida, muaj yim ceg nrog tsuas yog ob lub cev thiab yim lub qhov muag. Kab laug sab lub taub hau thiab thorax yog fused thaum lawv lub plab tsis segmented. Kab laug sab kuj tsis muaj tis lossis kav hlau txais xov zoo li kab.
Pom zoo:
Thaum muab piv cov kab kab kab thiab cov kab ntsig flatworms qhov twg muaj tseeb?
Ib tug flatworm muaj nyias, dorsoventrally flattened lub cev. Roundworms yog ntau cylindrical hauv cov duab thiab tapered mus rau qhov zoo ntawm ib kawg. Ib yam li ntawd, cov kab mob roundworms muaj ib txheej txheej txheej hu ua cuticle uas lawv tau rov ua dua thoob plaws hauv lawv lub neej thiab thaum lawv loj hlob.
Kab kab kab kab noj dab tsi?
Kab Ntsig Nplooj Ntoos noj eucalyptus nplooj tab sis kuj tau tsa sawv ntawm nplooj thiab nplooj raspberry los ntawm cov neeg txawv teb chaws uas eucalyptus tsis muaj ib txwm muaj. Koj pub dab tsi spiny nplooj kab? YKoj tuaj yeem pub lawv rau oak, bramble, qab zib chesnut, rhododendron, eucalyptus, kua, raspberry los yog nplooj nplooj.
Cov kab kab kab kab kab ua kab mob txaus ntshai npaum li cas?
Nyob rau hauv peb thiab tom ntej instars ntawm lawv txoj kev loj hlob, Pine processionary caterpillars yog mob heev rau daim tawv nqaij ntawm tib neegthiab lwm yam tsiaj. Kev sib cuag yooj yim nrog cov plaub hau ntawm kab ntsig tuaj yeem ua rau pob khaus hnyav (urticaria) thiab khaus qhov muag, thiab qee tus neeg yuav muaj kev fab tshuaj.
Kab ntsig kab kab puas muaj tshuaj lom?
Ib qho ntawm cov kab ntsig uas muaj tshuaj lom thiab tuag taus tshaj plaws yog Giant Silkworm npauj lossis South American Caterpillar (Lonomia obliqua). Cov larvae uas muaj kuab heev no tuaj yeem loj hlob mus txog 2 "(5.5 cm) ntev thiab muaj xim ntsuab lossis xim av.
Puas kab kab rov tav puas muaj txoj kab nqes?
Ib kab kab rov tav muaj nqes xoom vim nws tsis nce vertically (ie y 1 − y 2 =0), hos ib txoj kab ntsug tsis tau txhais txoj kab nqes vim nws tsis khiav horizontally (x 1 − x 2=0). … Vertical kab yog cim sawv cev los ntawm qhov sib npaug, x=a qhov twg a yog x-intercept.
