Thaum twg choanoflagellates tshwm sim thawj zaug?

Cov txheej txheem:

Thaum twg choanoflagellates tshwm sim thawj zaug?
Thaum twg choanoflagellates tshwm sim thawj zaug?
Anonim

Thawj qhov qhia txog kev sib raug zoo ntawm choanoflagellates thiab Metazoa tshwm sim thaum nruab nrab mus rau lig- 1800s thaum cov kws tshuaj ntsuam xyuas tau sau tseg qhov zoo ib yam ntawm choanoflagellates rau lub dab tshos (los yog ' choanocytes') ntawm daim txhuam cev.

Puas sponges evolve los ntawm choanoflagellates?

Sponges evolved li no los ntawm a craspedid-zoo li qia choanoflagellate.

choanoflagellates hloov zuj zus los ntawm dab tsi?

Choanocytes saib thiab ua yeeb yam zoo li choanoflagellates, ntau npaum li ntawd qee cov kws tshawb fawb tau pom nyob rau xyoo 1980 thiab 90s tias choanoflagellates tej zaum yuav yog cov tsiaj uas hloov zuj zus los ntawm sponges thiab tom qab ntawd yooj yim mus rau ib leeg.

Lub hauv paus ntawm Multicellularity yog dab tsi?

Thawj pov thawj ntawm ntau lub cellularity yog los ntawm cyanobacteria zoo li kab mob uas nyob 3–3.5 billion xyoo dhau los. Yuav kom rov tsim dua tshiab, cov kab mob sib txawv tiag tiag yuav tsum daws qhov teeb meem ntawm kev tsim tawm tag nrho cov kab mob los ntawm cov kab mob (piv txwv li, phev thiab qe hlwb), qhov teeb meem uas tau kawm hauv evolutionary kev loj hlob biology.

Tus tsiaj thawj zaug hauv ntiaj teb yog dab tsi?

A comb jelly. Lub evolutionary keeb kwm ntawm lub zuag jelly tau nthuav tawm cov ntaub ntawv xav tsis thoob txog lub ntiaj teb thawj tsiaj.

Pom zoo:

Nthuav cov khoom
Lutheran originate qhov twg?
Nyeem ntxiv

Lutheran originate qhov twg?

Lutheranism raws li kev ntseeg kev ntseeg tau tshwm sim hauv the thaum ntxov xyoo pua 16th Lub Tebchaws Roman Dawb Huv ua kev sim kho lub Koom Txoos Roman Catholic. Lub teb chaws twg Lutheranism pib? Martin Luther tau tsim Lutheranism, Protestant kev ntseeg kev ntseeg, thaum xyoo 1500.

Puas yog cov suffragists ua tiav?
Nyeem ntxiv

Puas yog cov suffragists ua tiav?

Nws tham txog lub zog suffragist li zoo li lub glacier, qeeb tab sis tsis nres. Los ntawm 1900 lawv tau ua tiav qee qhov kev ua tiav, tau txais kev txhawb nqa los ntawm qee tus neeg saib xyuas kev noj qab haus huv, nrog rau cov tshiab tab sis me me Labor Party.

Puas yog kathy reichs muaj qhov txhab?
Nyeem ntxiv

Puas yog kathy reichs muaj qhov txhab?

Tsis ntev tas los no kuv tau kuaj pom tias muaj qhov tsis sib haum xeeb ntawm lub paj hlwb. Tom qab kev phais, kuv nyob zoo. Cov kab hauv qab: Kuv muaj lub hlwb oddity thiab mob taub hau, yog li peb tus heroine kuj muaj lub dastardly duo. Cathy Reichs yog dab tsi?