Cov txheej txheem:

Yam dab tsi ua rau nce/nqis ntawm cov pej xeem?
Yam dab tsi ua rau nce/nqis ntawm cov pej xeem?

Video: Yam dab tsi ua rau nce/nqis ntawm cov pej xeem?

Video: Yam dab tsi ua rau nce/nqis ntawm cov pej xeem?
Video: cov tub rog qab qhoom txhua yam tuaj rau pej xeem thiab rau mi nyuam kawm ntawv 2024, Lub rau hli ntuj
Anonim

1. Yam dab tsi ua rau kom nce ntxiv / txo cov pejxeem ? Abiotic yam (kub, dej, hnub ci, cov as -ham hauv av), biotic yam (predators, prey, sib tw, predators, parasites, kab mob, thiab lwm yam), thiab intrinsic yam (adaptation) cuam tshuam rau pejxeem loj

Ib yam nkaus, tib neeg nug, 4 yam dab tsi uas cuam tshuam rau kev loj hlob ntawm cov pej xeem?

Kev loj hlob ntawm cov pejxeem yog raws plaub yam tseem ceeb: tus menyuam yug los, tus neeg tuag, kev nkag tebchaws , thiab kev tsiv teb tsaws chaw.

Tom qab ntawd, lo lus nug yog, yam dab tsi pab tswj kev loj hlob ntawm cov pej xeem? Ntau yam ncaj qha lossis ncaj qha tswj cov pej xeem kev loj hlob.

  • Txhua tus neeg ntsib kev sib tw rau zaub mov thiab chaw.
  • Tom qab ntawd muaj cov tsiaj txhu thiab kab mob uas tseem cuam tshuam rau cov pejxeem loj.
  • Lub caij hloov pauv kub thiab nag lossis daus yog lwm yam uas tswj hwm cov pejxeem loj.

Ib sab saum toj no, yam dab tsi ua rau cov pejxeem txo?

Ua. Kev txo qis lub sijhawm nyob hauv ib cheeb tsam cov pejxeem tuaj yeem tshwm sim los ntawm ntau yam xws li kev hloov pauv hloov me me (nrog rau qhov txwv kev nkag tebchaws ), hnyav tsiv teb tsaws chaw, kab mob , kev tshaib kev nqhis, thiab kev ua tsov ua rog.

Dab tsi yog lub hauv paus tseem ceeb uas cuam tshuam rau tib neeg kev loj hlob?

Yam uas cuam tshuam rau tib neeg kev loj hlob muaj xws li:

  • Kev kho mob/nkag mus rau kev saib xyuas kev noj qab haus huv/thev naus laus zis kho mob/muaj peev xwm tawm tsam lossis tiv thaiv kab mob.
  • Kev muaj peev xwm tswj kev yug me nyuam/muaj kev npaj rau kev qhia tsev neeg/siv kev tiv thaiv kev yug menyuam.
  • Kev nom tswv thiab/lossis nyiaj txiag ruaj ntseg/tsoomfwv ruaj ntseg/ua tsov ua rog.

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