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Periplaneta has no respiratory pigment in its blood because |
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a) |
Air is conducted directly to the body tissues |
b) |
It has haemocoelom |
|
c) |
It has anaerobic respiration |
d) |
It lacks blood cells in the blood |
|
Periplaneta has no respiratory pigment in its blood because |
|||
|
a) |
Air is conducted directly to the body tissues |
b) |
It has haemocoelom |
|
c) |
It has anaerobic respiration |
d) |
It lacks blood cells in the blood |
(a)
In the blood of Periplaneta, there is no respiratory pigment because air is conducted directly to the body tissues.