What does '$a$' represent in the given figure?

  • A
    Valve
  • B
    Capillaries
  • C
    Haemocoel
  • D
    Ostia

Explore More

Similar Questions

$Periplaneta$ has no respiratory pigment in its blood because

Explain the nervous system of a cockroach.

Which of the following structures originates from the ectoderm?

Identify the location of hepatic or gastric caeca in a cockroach.

The trachea in mammals and the trachea in cockroaches are similar in that they both have:

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