Txawm li cas los xij muaj ob qhov sib txawv: cov neeg ua luam dej rov qab yog cov neeg noj zaub mov noj tadpoles, kab thiab ntses me, thiab lawv ua luam dej ntawm lawv nraub qaum.
Koj pub dab tsi rau cov neeg caij nkoj dej?
Cov neeg caij nkoj hauv dej yog ib qho ntawm ob peb cov tswv cuab hauv dej ntawm qhov kev txiav txim no tsis yog qhov ua ntej thiab tsis txhob tom neeg. Hloov chaw, lawv nqus kua txiv los ntawm algae, nroj tsuag thiab detritus. Tsuas yog ob peb hom noj lwm yam tsiaj me me (xws li yoov tshaj cum).
Cov neeg tsav nkoj dej puas noj nroj tsuag?
Nws yog ib txwm muaj thiab dav hauv cov pas dej nyom, pas dej thiab kwj dej. Zoo li cov neeg ua luam dej hauv qab, nws muaj cov ceg ntev, zoo li cov ceg los pab nws ua luam dej ntawm cov dej, tab sis nws tsis ua luam dej upside-down. Nws kuj yog herbivorous, noj algae thiab detritus, tsis zoo li cov carnivorous Common backswimmer.
Cov neeg nkoj dej puas zoo rau koj lub pas dej?
Cov neeg caij nkoj hauv dej tuaj yeem muaj txiaj ntsig zoo nyob ib puag ncig hauv koj lub pas dej tom qab vim lawv muab zaub mov rau ntses thiab tsiaj qus, thiab lawv kuj pab kom algal thiab cog kev loj hlob hauv qab. tswj! Lawv tsis muaj mob rau tib neeg, thiab lawv tsis nkim lossis tom.
Tus neeg tsav nkoj hauv dej xav tau dab tsi?
Cov neeg caij nkoj hauv dej yuav tsum ua pa, yog li thaum lub sijhawm ntev hauv qab dej yog qhov tsim nyog, lawv yuav siv cov plaub hau me me rau hauv qab ntawm lawv lub cev txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau nws yuav tsum tau muaj cov thaum ua luam dej.