TsimSecondary kev kawm ntawv thiab cov tsev kawm ntawv

Zog mammalian qhov chaw yog ... Yuav ua li cas yog lub ntsiab qhov chaw ntawm lub zog rau cov me nyuam mos tsiaj?

Class tsiaj tau ntev lawm ib tug uas txoj hauj lwm rau tag nrho cov tsiaj. Nws cov neeg sawv cev muaj lub siab heev tshaj plaws nta ntawm cov qauv ntawm tag nrho cov khoom hauv nrog cev systems, xws li lub digestive. Noj los ntawm kev yug me nyuam yog qhov tseem ceeb rau lawv lub neej thiab loj hlob.

Leej twg yog cov tsiaj?

Class tsiaj koom siab ua ke tag nrho cov neeg ntawm lub hom chord, uas pub lawv cov tub ntxhais uas muaj mis nyuj. Thiab nws tsis muaj nqi, yuav tsum yog tus neeg sawv cev ntawm ib tug me me teb nas los yog ib tug giant Neeg Asmeskas ntxhw. Thaum yug los, tus mammalian qhov chaw ntawm lub zog yog cia li mis nyuj.

Noj los ntawm tus thawj feeb tom qab yug tus me nyuam tshwm sim nyob rau hauv cov tsiaj siv tshwj xeeb ob lub mis. Raws li lawv cov keeb kwm lawv yuav hloov hws.

Nyob rau hauv txheej thaum ub tsiaj xws li cov platypus thiab echidna, lawv yog heev tsis zoo tsim thiab qhib rau sab nraum nrog tshwj xeeb pores. Cov tsiaj muaj ntau nyob rau hauv ntau nrog lawv pog koob yawg koob - noog. Ua ntej ntawm tag nrho cov yog cov xub ntiag ntawm lub cloaca - ib tug tshwj xeeb qhov mus rau hauv uas paim lawv cov khoom sib deev, digestive thiab excretory systems. Nyob rau hauv marsupials cov neeg sawv cev - tus tsiaj khankalus, koala, wombat - ducts nrog mis nyuj qhib nyob rau hauv daim tawv nqaij folds. Nws yog nyob rau hauv nws tus me nyuam siv lub thawj lub sij hawm tom qab yug me nyuam, licking ceeb heev cov khoom ncaj qha mus rau ntawm daim tawv nqaij. Vim hais tias lub tsho me nyuam nyob rau hauv cov tsiaj yog tsis zoo tsim, lawv yug me me, unviable, qhov muag tsis pom, liab qab, thiab tsis muaj peev xwm sawv ntawm ywj siab hav zoov.

Txawv heev yog yug los ntawm ntau dua cov tsiaj. Lawv yog heev zoo tsim, muaj ntau yam yuav tau sai li sai tau tom qab yug tus me nyuam txav mus rau ntawm nws tus kheej.

Cov sib txawv heterotrophs

mammalian lub zog qhov chaw yog ib tug series ntawm ready-made organic cov ntaub ntawv, namely cov nqaijrog, lipids thiab carbohydrates. Yog li ntawd lawv, zoo li tag nrho cov neeg ntawm cov tsiaj kingdom yog heterotrophic. Nyob rau hauv no lawv txawv radically los ntawm cov nroj tsuag muaj peev xwm mus hloov ultraviolet tawg mus rau hauv carbohydrates. Tab sis nws yog tsim nyog thiab heterotrophs.

Zaum tau ntev muaj ib tug series ntawm thwmsim, txiav txim yog vim li cas koj xav tau tshav ntuj rau tej tsiaj txhu. Nws yog lub teeb liab rau thaum pib ntawm molting, hibernation, raws caij nyoog migration, tus tsim ntawm txiv neej pw cov tshuaj hormones. Los ua qhov ntev ntawm tus txheej txheem thiab lub rov tshwm sim ntawm ib tug menyuam coob coob plaub zag pib daylight.

txhom

Mammalian qhov chaw ntawm lub zog yog ib tug npaj txhij noj mov. Tab sis nws nkag mus rau hauv lub cev nyob rau hauv ntau txoj kev. Yog li ntawd, txhom pounce thiab sacrificed nws tus raug tsim txom nyob ib leeg.

Rau no unih muaj ib tug xov tooj ntawm cov yam ntxwv nta: muaj zog nqaij, ntse claws thiab haib hniav. Raws li ib tug hauv paus txawm hniav rau txhua sab ntawm koj lub puab tsaig yuav hloov dua siab tshiab rau hauv thiaj li hu ua predatory hniav. Qhov no yog ib tug hloov hniav hauv paus, uas yog vim cov loj loj thiab ntse ntug txawm tau mus ua txhaum lub meej mom ntawm tus neeg cov pob txha. Tsiaj cov zaub mov yog nplua nuj nyob rau hauv cov nqaijrog thiab nqaijrog. Yog li ntawd, lub zog los ntawm nws kev noj, txaus rau ib ntev lub sij hawm.

Txoj kev ntawm zaub mov ntau lawm nyob rau hauv pab pawg neeg no ntawm cov tsiaj txawv heev. Ib txhia caum tus neeg kom txog thaum tag nrho nws cov rog yuav tsum nyob rau hauv wane. Lwm yam nres prey mam li nco dheev. Thiab kuj kawm tau ntawv zoo.

Txawv txhom thiab txoj kev ntawm hav zoov. Piv txwv li, tom tsov ntxhuav thiab hma xav mus nyob thiab yos hav zoov swarms. Bears tseem hlub solitude.

herbivorous

Tab sis lub zog yog ib qhov chaw ntawm mammalian thiab npaj txhij noj mov, uas muaj peev xwm muab tau thiab tsis raws li "ntshav" txoj kev. Heev ntau cov tswv cuab ntawm cov tsiaj ntiaj teb no xav herbal khoom. Nws yog nplua nuj nyob rau hauv tseem ceeb cov fiber - ib tug natural carbohydrate. Piv txwv li, nas nteg nyob rau hauv khw noob qoob loo. Ib tug ruminants regurgitate cov chewed nyom thiab ces metabolize lub substance. Cov teeb meem tsuas yog ib tug. Qhov no yog ib tug uas tsis muaj-calorie khoom noj khoom haus. Herbivores muaj noj nws heev npaum li cas thiab lossi nyob rau hauv kev tshawb fawb ntawm cov zaub mov. Nyob rau hauv lub tej yam kev mob ntawm temperate kev nyab xeeb nws muaj nyob rau kuj yog nyob ntawm lub caij ntuj no. Thiab txhom lossi siv zog mus lob cov neeg pluag herbivores. Tab sis los tiv thaiv lawv raws li muaj ib tug xov tooj ntawm cov nta. Ua ntej ntawm tag nrho cov, nws yog ib tug muaj zog hooves thiab tshuab raj. Tab sis feem ntau ntawm tag nrho xws li cov tsiaj yuav pab ceev ko taw. Yog li ntawd, lawv xav tsis txhob nkag mus rau hauv ib tug tsis zoo tib sib ntaus sib tua nrog cov yeeb ncuab, sai li sai li sai tau kev khiav.

kev sib tw

Nws yog lub npe hu hais tias ib puag ncig kev pab yog tas txaus. Yog li ntawd, ib tug muaj plaub muaj sib ntaus rau zaub mov, lub teb chaws nyob, nyob rau ntawm cov chaw thiab kev sib deev nrog ib tug neeg. Raws li ib tug tshwm sim, muaj ib tug kev sib tw ntawm cov neeg ntawm lub qub los yog ntau hom. Lawm, nyob rau hauv no nyuaj siab, tus muaj zog xwb. Raws li ib tug tshwm sim, tej yam ntuj tso xaiv, uas yog ib tug ntawm cov tsav tsheb rog ntawm evolutionary hloov. Nrog rau qhov no txoj kev xav, muaj ntau yam sib ceg. Tab sis kev tshawb fawb zaum tau qhia tias cov tsiaj uas nyob hauv tib cheeb tsam, nrog rau cov zaj uas lub sij hawm ua qhov sib txawv nyob rau hauv cov xim, cov qauv ntawm cov hniav thiab ntau kabmob.

Khoom noj khoom haus: cov nqaijrog, Sibhawm, carbohydrates

Organic tshuaj noj ua ke nrog cov khoom noj tsiaj, muaj yauv hloov ntau. Sibhawm raws li ib tug lub zog qhov chaw yog cov high-calorie tshuaj. Nyob rau hauv lub plab, lawv raug tawg cia rau hauv glycerol thiab fatty acids. Qhov no tawm ob lub sij hawm ntau zog tshaj thaum ib tug zoo li hloov dua siab tshiab ntawm lwm yam organic tshuaj.

Ib qho tseem ceeb feem ntawm cov khoom noj ntawm cov tsiaj yog squirrels. Raws li ib lub hauv paus rau tej yam ntawm tus tsiaj, lawv nqa tawm kev tsim kho, zog, khw thiab kev tiv thaiv nuj nqi. Lub constituent qhov chaw ntawm cov nqaijrog yog amino acids. Zaum pom tau tias ib co ntawm lawv yog cov tseem ceeb. Qhov no txhais tau tias cov tshuaj tsis tau tsim nyob rau hauv lub cev, tab sis tsuas yog ua nrog cov tsiaj cov zaub mov.

Carbohydrates twb pib mus ua txhaum down nyob rau hauv lub qhov ncauj nrog rau kev pab los ntawm enzymes ntawm lub qaub ncaug. Ntau hom uas muaj suab thaj tsim nyog rau cov metabolism hauv cov kab mob.

Haus dej, cov me nyuam, mis nyuj!

Muaj pes tsawg leeg ntawm cov mis nyuj los ntawm txawv tsiaj ntawm cov tsiaj txawv sufficiently loj ntau yam. Tab sis cov neeg hluas uas heev sai sai tom qab yug tus me nyuam doubles nws tus kheej yuag, noj cov zaub mov, tshwj xeeb tshaj yog nplua nuj nyob rau hauv protein. Tej mis nyuj khoom luav, mos lwj, npua, twm thiab yaj. Tsim nyog rau txoj kev loj hlob thiab kev loj hlob ntawm me me carbohydrate lactose kab cais tshis thiab nyuj. Richly mis nyuj thiab lwm yam minerals tawm. Qhov no tiag tiag fount poov tshuaj, poov hlau, phosphorous, hlau. Thiab vitamin cocktail. Riboflavin, ascorbic acid, Retinol, thiamine - uas tsis yog ib tug ua tiav daim ntawv teev cov tshuaj. Yog li ntawd, cov mis nyuj tau ntev raug suav hais tias tsis tsuas qab, tab sis kuj yog ib tug pab tau khoom, raws li tsim nyog rau ib tug zuj zus kab mob ntawm ib tug me me tus me nyuam.

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