Video: Cov pab pawg twg muaj feem ntau ntawm cov celled eukaryotes xws li protozoans?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Protozoa yog ib leeg - celled eukaryotes (cov kab mob uas lawv lub hlwb muaj nuclei) uas feem ntau qhia cov yam ntxwv feem ntau cuam tshuam nrog cov tsiaj, feem ntau tshwj xeeb tshaj yog kev txav mus los thiab heterotrophy. Lawv feem ntau koom ua ke hauv lub nceeg vaj Protista ua ke nrog cov nroj tsuag zoo li algae thiab fungus zoo li dej pwm thiab slime pwm.
Kuj nug, pawg eukaryotic twg muaj cov kab mob hauv ib leeg xwb?
Protists yog ib tug ntau haiv neeg sau kab mob . Thaum muaj kev zam, lawv muaj feem ntau microscopic thiab unicellular , los yog ua los ntawm a ib leeg . Cov hlwb ntawm protists tau koom nrog cov nucleus thiab cov tshuab tshwj xeeb hu ua organelles.
Tom qab ntawd, lo lus nug yog, puas muaj kab mob unicellular tsim? Lub neej loj hlob thiab txhim kho Txhua tus nyob kab mob pib lub neej ua ib leeg xwb. Cov kab mob Unicellular tuaj yeem nyob ua ib lub cell tab sis lawv loj hlob ib yam nkaus. Multicellular kab mob ntxiv ntau thiab ntau lub hlwb los tsim ntau cov ntaub so ntswg thiab lub cev thaum lawv loj hlob.
Yog li ntawd, lub zog twg yog siv los ntawm ze li txhua yam kab mob nyob hauv ntiaj teb?
Nws yog xav tau los ntawm sawv daws nyob yam thiab txhua lub neej cell ua cov txheej txheem ntawm lub neej, xws li kev rhuav tshem thiab tsim cov molecules, thiab thauj ntau cov molecules hla cell membranes. Cov daim ntawv ntawm lub zog uas nyob yam xav tau rau cov txheej txheem no yog tshuaj zog , thiab nws los ntawm zaub mov.
Dab tsi muaj ob qho tib si nyob thiab tsis muaj sia nyob?
Biotic yam muaj xws li txhua yam kab mob xws li nroj tsuag, kab, noog, thiab tsiaj txhu. Cov khoom siv xws li av lossis lub pas dej, uas muaj ob qho tib si nyob thiab tsis muaj sia nyob , tuaj yeem nyuaj rau kev cais.
Pom zoo:
Cov pab pawg twg ntawm cov ntawv teev sijhawm twg yog cov tshuaj chlorine?
Chlorine belongs rau pab pawg neeg ntawm halogens - ntsev tsim - ua ke nrog fluorine (F), bromine (Br), iodine (I) thiab astatine (At). Lawv tag nrho nyob rau hauv kab thib ob los ntawm sab xis ntawm lub rooj sib tham hauv Pawg 17. Lawv cov teeb tsa hluav taws xob zoo sib xws, muaj xya lub tshuab hluav taws xob hauv lawv lub plhaub sab nraud
Dab tsi feem ntau yog pab pawg ua haujlwm thiab vim li cas cov pab pawg no tseem ceeb?
Cov pab pawg ua haujlwm tau txuas mus rau carbonbackbone ntawm cov organic molecules. Lawv txiav txim siab tus yam ntxwv thiab tshuaj lom neeg reactivity ntawm molecules. Cov pab pawg ua haujlwm tsis tshua muaj kev ruaj ntseg dua li cov pa roj carbon monoxide thiab zoo li yuav koom nrog cov tshuaj tiv thaiv
Cov pab pawg twg hauv qab no ntawm kev tshawb fawb txog kev ua haujlwm ib puag ncig zoo sib xws?
Teb: D) Environmental activist, ib puag ncig tus kws lij choj Nyob rau hauv cov kev xaiv, ib puag ncig activists thiab ib puag ncig tus kws lij choj yog ib puag ncig science cov hauj lwm uas zoo sib xws. Lub hom phiaj tseem ceeb ntawm cov kws tshaj lij no yog kev tiv thaiv ib puag ncig
Puas yog cov ntsiab lus uas muaj cov tshuaj lom neeg zoo sib xws yuav pom nyob rau tib lub sijhawm lossis hauv tib pab pawg piav qhia koj cov lus teb?
Qhov no yog vim hais tias cov tshuaj muaj zog nyob ntawm tsis muaj valence electrons. Raws li nyob rau hauv ib pawg tag nrho cov ntsiab lus muaj tib yam tsis muaj valence electron uas yog vim li cas lawv muaj cov tshuaj zoo sib xws tab sis nyob rau hauv ib lub sij hawm tsis muaj valence electron sib txawv uas yog vim li cas lawv txawv nyob rau hauv chemical zog
Qhov twg ntawm cov ntsiab lus hauv qab no feem ntau pom nyob rau hauv feem ntau cov chiv?
Cov tshuaj chiv niaj hnub suav nrog ib lossis ntau tshaj ntawm peb lub ntsiab lus tseem ceeb tshaj plaws hauv cov zaub mov noj: nitrogen, phosphorus, thiab potassium. Qhov tseem ceeb thib ob yog cov ntsiab lus sulfur, magnesium, thiab calcium