Home
Subscribe TechModgy to learn about new technologies!

The blood of cockroach contains no respiratory pigment. It means that

A. cockroach does not respire.

B. respiration is anaerobic.

C. oxygen goes directly into tissues by diffusion.

D. oxygen goes directly into tissues by intracellular capillary system.

Please do not use chat terms. Example: avoid using "grt" instead of "great".