Tiag tiag lawv yog arthropods, lawv muaj a tawv exoskeleton thiab ob txhais ceg, thiab lawv muaj feem xyuam rau kab thiab crustaceans. Zoo li kab, myriapods muaj ib khub ntawm cov kav hlau txais xov, tab sis lawv muaj ntau ceg ntau dua li kab. … Myriapods yog ib pab tsiaj thaum ub, lawv yog cov tsiaj thawj zaug nyob hauv av.
Tus yam ntxwv ntawm myriapods yog dab tsi?
Cov yam ntxwv tseem ceeb ntawm myriapods suav nrog:
- Ntau ob txhais ceg.
- Ob lub cev (lub taub hau thiab lub cev)
- Ib khub kav hlau txais xov ntawm lub taub hau.
- Qhov muag yooj yim.
- Mandibles (sab puab tsaig) thiab maxillae (sab laug lub puab tsaig)
- Kev sib hloov ua pa tshwm sim los ntawm txoj hlab ntsws.
Yuav ua li cas myriapoda pub?
Feem ntau myriapods yog decomposers, nrog rau feem ntau herbivores tawg decaying cog khoom, tab sis centipedes yog hmo ntuj predators. Centipedes roam ncig nrhiav tsiaj me los tom thiab noj; lawv cov tsiaj muaj xws li kab, kab laug sab, thiab lwm yam me me invertebrates.
Lub cev ntawm myriapods npog nrog dab tsi?
Symmetry: Ob tog; presegmental acron thiab postsegmental telson nrog 19 txog >200 cuam tshuam ntu, txhua tus nrog ob txhais ceg (txawm hais tias cov ceg ceg yuav raug hloov kho lossis ploj). Lub cev Cavity: Muaj tseeb coelom txo qis thiab tsis tuaj rau hauv cov neeg laus. Haemocoel tib lub cev kab noj hniav. Lub Cev Covered: Covered by chitinous exoskeleton
Pob myriapods muaj ob khub kav hlau txais xov?
Lawv muaj ob lub cev thaj tsam, 10 lossis ntau dua ob txhais ceg, ob khub ntawm tus kav hlau txais xov, ib ntus lub cev, tawv (chitinous - zoo li ib tug nyom nyom) exoskeleton, ua ke ob leeg leeg, thiab tsis muaj tis. Myriapods suav nrog chav kawm chilopoda thiab diplopoda.
