Chifukwa Volvox amatchedwa zamoyo zokhala ndi selo imodzi? Kapangidwe ka Volvox algae

M'dziko pali zambiri zodabwitsa tizilombo tosaoneka. Ngati wina mu mutu wanga mndandanda wa zinthu zodabwitsa seveni microcosm, ndi Volvox algae kuti ndithudi m'gulu mndandanda.

wobiriwira algae

Volvox - ndi algae wobiriwira. Alipo mu mawonekedwe a madera. Chifukwa Volvox amatchedwa zamoyo zokhala ndi selo imodzi? Yankho akusonyeza palokha ndi losavuta: umodzi uliwonse pang'ono matope ndi selo kuti ali michirayo imakhala yosiyanasiyana awiri ndi tsitsi.

maselo Single ogwirizana ndi woonda chingwe cha cytoplasm ndi mzake, amene amalola njuchi kusambira mogwirizana. oimira munthu kupatula tsitsi ndi michirayo imakhala yosiyanasiyana komanso yaing'ono wofiira banga, otchedwa diso.

selo zosiyanasiyana amapereka wapadera oimira algae. Aliyense njuchi m'poyambira ndi pothera, mwa kulankhula kwina, ku North ndi South mizati. M'chigawo choyamba waona kudzikundikira yapadera kwambiri za masamba anayamba. Zimenezi zimathandiza algae kusambira kwa kuwala. Choncho, mzinda wa zamoyo zokhala ndi selo imodzi mu maonekedwe mwina pochitika kwa multicellular chamoyo.

Volvox: kapangidwe

Akafunsidwa chifukwa Volvox anatchula zinthu monga zokhala ndi selo imodzi, ndi ponena kuti selo limodzi lokha kungakhale kwa 2 millimeters awiri (m'midzi akuluakulu - mpaka 2 cm) mtengo, kotero iwo akhoza mophweka ndi apoyera. Ena algae ogwirizana ndi filaments zonyalazo cytoplasm.

Volvox algae ndi dongosolo mwachilungamo wophweka. M'mimbamo chapakati wodzazidwa ndi ntchofu. Maselo onse ndi michirayo imakhala yosiyanasiyana awiri, omwe amagwira pa kumaso. Mukachipinda mu selo imagwira ntchito yake ya zakudya, kupuma ndi excretion. mawonekedwe mwina ozungulira, elliptical, kapena chowulungika. Wosanjikiza akunja amadziwikanso yokutidwa ndi ntchofu. Mukachipinda ali ndi diso limodzi mu mawonekedwe a malo pa kumaso.

kubalana

algae Volvox kubereka njira chidwi kwambiri ndipo ngakhale zosangalatsa. Iwo akhoza kubereka onse asexually ndi kugonana. Pa anayendera pafupi mukhoza kuona kuti anthu ambiri amene ankawalamulira ndi m'madera yeniyeni, ndipo amatchedwa gonads.

Ichi ndi chizindikiro cha asexual kubalana. Gonads ku maselo wakula padziko equator wa njuchi. Maselo amenewa kukula ndi kubatizidwa mndandanda wa zigawo mpaka iwo apanga muzochitika yaing'ono. Mu nkhani iyi, michirayo imakhala yosiyanasiyana ali mkati bwalo latsopano. Kuchotsa iwo, selo usatongwa ulang'ane nokha mkati mpaka kunja.

Volvox angathe kubereka okha monga kugonana. Ngati asexual kubalana maselo wapadera kudziunjikira kuzungulira dziko. Mwamuna ndi mkazi anamulenga chambiri maselo osiyanasiyana nyongolosi.

maselo umuna anapanga ndi kugawikana. Female maselo kugonana chiyani kugawaniza, koma kuwonjezera kukula. Mitundu yambiri ndi madera wamkazi amuna ndi. Ena hermaphrodites.

Volvox ndi dzuwa

Kuyangana magulu a anthu ochokera pansi pa maso kuwala ndi pamaso moona zedi. Mukasiya mipata yokwanira pansi kapu kuti kuzembera, aang'ono muzochitika wobiriwira kuyamba pang'onopang'ono tiwolokere kwa backlight lapansi.

Volvox zosavuta kupeza. Onse ayenera - ndi wokongola woyera ndi madzi ofunda, wolemera mu zakudya. A nthawi yabwino kusunga - chilimwe. Scooping mmwamba pang'ono toyesa wobiriwira Tingaone ngati banki ndi madzi a "dziwe ukufalikira" algae adzakopedwa kuwala.

malo

Chifukwa Volvox amatchedwa zamoyo zokhala ndi selo imodzi? Dziwani izi. Volvox ali limodzi tating'ono dongosolo, izo sangaonekerenso kudzipatula, kawirikawiri ndipamene madera ozungulira anthu 50 000. Ndi osati khungu ndi munthu tosaoneka chamoyo. Zimachitika njira yake yofunika. Ndicho chifukwa Volvox anatchula zinthu monga zokhala ndi selo imodzi.

Yabwino zosiyanasiyana kwa algae izi ndi madzi abwino. tizilombo amenewa akupezeka amatunga, ngalande ndi ngakhale m'madamu osaya. Volvox algae ali pakati pa wamkulu pa dziko. Malinga ndi mfundo za asayansi, njira atsamunda a moyo, izo zinali zaka 200 miliyoni zapitazo.

Volvox - kwambiri otukuka chamoyo za mtundu wake. Ndipamene ozungulira, ellipsoid kapena ovoid njuchi. Maselo algal muli wotchedwa chlorophyll, kotero iwo kupereka chakudya umene timapuma. Mukachipinda munthu zabwino wa njuchi, ndipo io akhale ngati chamoyo umodzi.