1) which is NOT the characteristic of Platyhelminthes?  a) unsegmented and flattened shape b) Most are hermaphrodites c) Acoelomate (no coelom) d) Sexes separated 2) which is/are correct about Nematoda? (You can select one OR more than one answers a) Pseudo coelomate b) Hermaphrodites c) Round worm with pointed ends d) Sexes separated 3) which is NOT the characteristic of Annelida? a) Chaetae help in locomotion b) Coelomate (has body cavity) c) Excretion and osmoregulation by flame cell

排行榜

视觉风格

选项

切换模板

恢复自动保存: