Tus qauv ntawm annelids yog dab tsi?

Cov txheej txheem:

Tus qauv ntawm annelids yog dab tsi?
Tus qauv ntawm annelids yog dab tsi?
Anonim

Cov qauv tag nrho ntawm annelids tsis txawv ntau npaum li cas piv rau lwm cov phyla. Tag nrho cov annelids muaj tus kab mob zoo li tus kab mob, segmented lub cev, tab sis ib qho tseem ceeb sib txawv ntawm lawv yog tus naj npawb thiab lub koom haum ntawm bristles thiab appendages. Annelids yog ob sab symmetrical, triploblasts, thiab protostomes.

Tus qauv ntawm annelids yog dab tsi?

Lub cev ntawm ib qho annelid feem ntau piav raws li ib lub raj hauv ib lub raj. Lub raj sab hauv, lossis lub plab zom mov, yog cais los ntawm cov raj sab nraud, lossis lub cev phab ntsa, los ntawm coelom. Lub taub hau cheeb tsam (prostomium) yog ua raws los ntawm ib tug series ntawm ntu zoo sib xws nyob rau hauv tsos.

Daim ntawv thiab kev ua haujlwm ntawm annelid yog dab tsi?

Annelids yog segmented worms xws li earthworms thiab leeches. Annelids muaj coelom, kaw cov hlab ntsha, excretory system, thiab ua tiav digestive system. Lawv kuj muaj hlwb. Earthworms yog ib qho tseem ceeb deposit feeders uas pab tsim thiab ntxiv av.

Dab tsi yog qhov tshwj xeeb ntawm lub cev qauv ntawm lub annelid?

Annelids muaj lub cev npog los ntawm lub cuticle sab nraud uas tsis tau tso los yog molted. Epidermal microvilli secrete lub network ntawm fibers uas yog ib feem ntawm collagenous thiab kuj muaj scleroprotein. Chaetae kuj yog cov txheej txheem cuticular, tab sis muaj ntau cov chitin.

Yuav muaj pes tsawg lub siab?

Nyob hauv av, uas yog kab tias nrov tshaj plaws ntawm tag nrho cov annelids, muaj tsib lub plawv-zoo li cov qauv hu ua aortic arches. Nrog rau dorsal thiab ventral hlab ntsha, lub aortic arches pab cov ntshav ntws los ntawm lub kaw circulatory system thiab ncav cuag ob kawg ntawm lub cev.

Pom zoo:

Nthuav cov khoom
Lub sijhawm elongation ntawm kev txhais lus uncharged trnas txav mus rau?
Nyeem ntxiv

Lub sijhawm elongation ntawm kev txhais lus uncharged trnas txav mus rau?

Peptide daim ntawv cog lus; uncharged tRNA txav mus rau qhov E site & tom qab tawm ntawm ribosome; lub mRNA tau hloov pauv 3 lub hauv paus mus rau sab laug, ua rau tRNA bearing dipeptide hloov mus rau P site P site P-site (rau peptidyl) yog qhov thib ob khi qhov chaw rau tRNA hauv ribosome.

Dab tsi yog asbestiform fibers?
Nyeem ntxiv

Dab tsi yog asbestiform fibers?

Raws li siv hauv daim ntawv tshaj tawm no, lo lus asbestiform fibers suav nrog fibers uas muaj lub zog zoo thiab yoog raws, ruaj khov, cov qauv saum npoo tsis muaj qhov tsis xws luag, thiab ntau lwm yam khoom tau piav qhia tom qab. Kev lag luam zoo asbestos yog ib qho piv txwv ntawm asbestiform fiber.

Colleen dewhurst tuag li cas?
Nyeem ntxiv

Colleen dewhurst tuag li cas?

Dewhurst tuag rau hnub Thursday ntawm mob qog noj ntshav ntawm nws lub tsev hauv New York suburb ntawm Lewisboro, hais Tom Viola, tus kws tshaj lij rau lub koomhaum uas nws ua haujlwm, Tus Ua Yeeb Yam Equity. Txawm hais tias ntau phau ntawv sau npe Dewhurst hnub nyoog li 65, nws yog 67, hais tias nws tus khub ntev, Ken Marsolais.