Structural Organisation In Animals Question 81
Question: Cockroach blood does not contain respiratory pigment. It means:
Options:
A) it does not respire.
B) cockroach respires anaerobically.
C) oxygen passes to all the tissues through diffusion.
D) oxygen reaches tissue through tracheoles.
Show Answer
Answer:
Correct Answer: A
Solution:
[a] All body tissue receive oxygen directly through tracheoles.