The $Tube-within-a-Tube$ body plan is shown by:

  • A
    Coelenterates
  • B
    Platyhelminthes
  • C
    Aschelminthes (Nemathelminthes)
  • D
    Porifers

Explore More

Similar Questions

Thigmotaxis is not shown by

Number of juvenile stages found during the development of $Ascaris$.

In filarial worms $(Wuchereria \text{ } bancrofti)$, the males are ......... in length compared to the females.

The scientific name of pin worm or seat worm is

Give the characteristics of Phylum Aschelminthes.

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo