|
Blood vascular system of the cockroach is of |
|||||||
|
a) |
Open type |
b) |
Closed type |
c) |
Portal type |
d) |
None of these |
|
Blood vascular system of the cockroach is of |
|||||||
|
a) |
Open type |
b) |
Closed type |
c) |
Portal type |
d) |
None of these |
(a)
Blood vascular system of the cockroach is of open type. Blood vessels are poorly developed and opens into the haemocoel