Phylum Aschelminthes is characterised by:
ADiploblastic, radially symmetrical
BCoelomate, segmented
CPseudocoelomate, bilaterally symmetrical, triploblastic, round in cross-section (roundworms); examples — Ascaris, Wuchereria, Ancylostoma
DAcoelomate, triploblastic, dorso-ventrally flattened
Answer & Solution
Correct answer: C. Pseudocoelomate, bilaterally symmetrical, triploblastic, round in cross-section (roundworms); examples — Ascaris, Wuchereria, Ancylostoma
Aschelminthes (Nematoda) are pseudocoelomates — body cavity present but NOT lined by continuous mesoderm. Round in cross-section. Sexes separate; females typically larger. Examples: Ascaris (roundworm), Wuchereria (filaria), Ancylostoma (hookworm).
Related questions
The segmentation seen in the earthworm is called:A body divided into segments with repeated organs shows:Animals with no body cavity at all are called:A cavity not lined by mesoderm is called a:Animals possessing a true coelom are called:A body cavity lined by mesoderm is called the:The mesoderm lies in the embryo between the endoderm and the:Animals whose embryo also has mesoderm are called: