Puas spicules tseem ceeb rau cov txheej txheem tseem ceeb rau daim txhuam cev?

Cov txheej txheem:

Puas spicules tseem ceeb rau cov txheej txheem tseem ceeb rau daim txhuam cev?
Puas spicules tseem ceeb rau cov txheej txheem tseem ceeb rau daim txhuam cev?
Anonim

Yuav ua li cas cov spicules tseem ceeb rau cov txheej txheem tseem ceeb rau daim txhuam cev? … Spicules tsis tsuas yog txhawb cov hlwb ntawm daim txhuam cev, lawv kuj pab cov larvae kom nyob twj ywm thaum nyob rau hauv lub plankton los yog mus txog rau hauv qab ntawm kev sib hais haum, txhim khu kev loj hlob zoo, los yog ntes prey.

Dab tsi yog txoj haujlwm ntawm Spicule uas tsis yog txhawb nqa?

Dab tsi muaj nuj nqi uas tsis yog kev txhawb nqa tuaj yeem pab tau? spicules kuj pab rau funnel lub teeb nyob rau hauv lub sponges. Lawv ua qhov no los ntawm kev teeb pom kev zoo, vim tias lawv qhov ntsuas kub tsis zoo tso cai rau lawv tsim cov impurities ntau dua uas ua rau qhov ntsuas qhov cuam tshuam.

Yuav ua li cas spicules ua rau daim txhuam cev quizlet?

Cov spicules ua dab tsi rau daim txhuam cev? Pab muab daim txhuam cev rigidity thiab daim ntawv.

spicules pab sponges ciaj sia li cas?

Spicules ua raws li lub cev pob txha muab kev txhawb nqa & zoo li daim txhuam cev, suav nrog ua kom lub qhov hws thiab osculum qhib. Lawv cov ntsiab lus ntse kuj tseem tuaj yeem pab tiv thaiv daim txhuam cev los ntawm kev noj los ntawm cov tsiaj nyeg. … Lawv lub ntsiab lus tseem ceeb kuj tseem yuav pab tiv thaiv cov sponges los ntawm kev noj los ntawm cov tsiaj nyeg.

Dab tsi yog qhov ua haujlwm ntawm spicules hauv daim txhuam cev?

Dhau li ntawm kev txhawb nqa cov sponge hlwb, spicules tuaj yeem pab cov larvae nyob twj ywm thaumnyob rau hauv lub plankton lossis ncav cuag hauv qab ntawm kev sib hais haum, txhim kho kev loj hlob zoo, lossis ntes cov tsiaj.

Pom zoo:

Nthuav cov khoom
Puas yog homomorphism tib yam li isomorphism?
Nyeem ntxiv

Puas yog homomorphism tib yam li isomorphism?

Isomorphism yog homomorphism tshwj xeeb. Greek keeb kwm "homo" thiab "morph" ua ke txhais tau tias "zoo tib yam." Muaj ob qhov xwm txheej uas homomorphisms tshwm sim: thaum ib pab pawg yog ib pawg ntawm lwm pawg;

Yuav tau sawv los yog tshwm sim?
Nyeem ntxiv

Yuav tau sawv los yog tshwm sim?

Peb hom tshwm sim yog arise, sawv, arisen. Nws yog siv hauv cov ntsiab lus tseem ceeb: Ib lub sijhawm tshwm sim thiab nws txiav txim siab los ua txoj haujlwm hauv Brussels. Ib qho teeb meem tshwm sim nrog kuv daim ntawv hla tebchaws. Koj siv arose hauv kab lus li cas?

Nyob hauv qab ceg cov leeg nqaij gastrocnemius khoov?
Nyeem ntxiv

Nyob hauv qab ceg cov leeg nqaij gastrocnemius khoov?

Cov leeg nqaij gastrocnemius flexes ko taw ntawm pob qij txha- uas yog nws ua rau taw taw ko taw nqes los ntawm khoov nws ntawm pob taws pob taws, xws li thaum koj sawv ntawm koj. cov ntiv taw. Qhov kev txiav txim no hu ua plantar flexion. Lub gastrocnemius kuj flexes ceg ntawm lub hauv caug sib koom.