Tus ua luam dej ntawm lub teeb liab crayfish, Pacifastacus leniusculus, tshwm sim hauv pairs ntawm qhov thib ob mus rau qhov thib tsib lub plab , nrog ib ceg ceg ntawm txhua sab ntawm lub plab 7
Puas muaj crayfish muaj Swimmerets?
Ntxiv rau nws cov ceg taug kev thiab chelipeds crayfish muaj tsib khub ntawm cov ceg me me hu ua swimmerets. Cov swimmerets tau txuas rau hauv qab ntawm lub plab thiab siv los txheeb xyuas poj niam txiv neej ntawm crayfish.
crayfish bristles nyob qhov twg?
Puas crayfish muaj bristles? Qhov twg? Yog lawm, lawv muaj lawv ntawm lawv lub plhaub.
Dab tsi yog Swimmerets ntawm crayfish?
SWIMMERETS nyob rau hauv crayfish yog paj ventral plab appendages uas tuav hauv metachronal atherosclerosis thaum lub sij hawm coj cwj pwmxws li ua luam dej thiab burrow cua. Txhua tus swimmeret yog tsav los ntawm kev sib hloov tawg ntawm impulses nyob rau hauv antagonistic hwj chim- thiab rov-stroke motoneurones.
Vim li cas crayfish muaj Swimmerets?
Qhia rau cov menyuam kawm ntawv tias cov swimmerets muaj peb txoj haujlwm. Lawv pab tus crayfish ua luam dej, lawv txav dej hla cov gills rau kev ua pa, thiab ntawm tus poj niam lawv tuav tus larva. RESUME qhov video. PAUSE the video li poj niam lub qe "dangling like grapes" pib taug kev.
