Question
Biology Question on Structural Organisation of Animals and plants
Tubular heart of cockroach has how many chambers?
A
10
B
13
C
12
D
11
Answer
13
Explanation
Solution
Circulatory system of cockroach is open or lacunar type. Tubular heart of cockroach is situated in pericardial sinus over the dorsal diaphragm. It is longitudinally beaded with 13 chambers perforated by ostia having valves.