Option B: Lub Qhov Ncauj: Nws lub qhov ncauj nyob rau sab ventral. Nws muaj snout (lub qhov ncauj thiab qhov ntswg) zoo li tus dev, tsis yog lub qhov ncauj. … Tus dev paub tias muaj ntxhiab tsw muaj zog yog li tus ntses lub npe yog dogfish nyob rau hauv nam ntawm nws muaj zog-ntses zog.
Puas yog Scoliodon dev ntses?
Biology. Scoliodon (Aub ntses) muaj qhov elongated, spindle-shaped lub cev tapered ntawm qhov kawg, ua rau nws ua luam dej ceev heev. Lub cev thiab tus Tsov tus tw yog tom qab compressed, thaum lub taub hau cheeb tsam yog dorsoventrally compressed. Tag nrho lub cev yog npog los ntawm exoskeleton ntawm cov nplai placoid.
Puas dogfish yog Pisces?
Keeb Kwm ntawm Dogfish:
Pisces (Nqaij) yog aquatic, vertebrates ntshav txias uas ua pa los ntawm gills thiab nyob hauv dej. … Lawv tau ua khub thiab tsis muaj fins txhawb los ntawm cov mos mos los yog spiny fins.
Scoliodon zaub mov yog dab tsi?
Dogfish (Scoliodon) yog cov nqaij noj thiab noj zaub mov feem ntau ntawm lwm cov ntses, tab sis noj zaub mov kuj tseem muaj xws li pob zeb-crabs, lobsters thiab kab laug sab-crabszaub mov yog nqos yam tsis muaj mastication. Cov hniav ntawm Dogfish (Scoliodon) tsuas yog tiv thaiv kev khiav tawm ntawm cov tsiaj los ntawm lub qhov ncauj thiab tsis ua haujlwm ntawm mastication.
Tus cwj pwm noj Scoliodon yog dab tsi?
Habitat and Habitat of Scoliodon:
It eats me me pelagic schooling and below living bony fishes, suav nrog anchovies, codlet (Bregmacero-tidae), burrowing gobies (Tripauchenidae) thiab Bombay ducks (Harpadontidae) as well as cw thiab cuttlefish.