Blood Vascular System of Cockroach
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Q.
Read the paragraph and fill the blanks with the correct option sequence:
The blood vascular system of a cockroach is of ___(i)___ type, as blood flows in the body cavities. The generalised body cavity is called ____(ii)____. Blood is colourless due to the absence of ____(iii)____. The heart is ____(iv)____ and works in coordination with alary muscles for contractions and dilations.
(i) Open (ii) Haemocoel (iii) Haemoglobin (iv) 12 chambered
- (i) Open (ii) Haemocoel (iii) Porphyrin (iv) 13 chambered
- (i) Open (ii) Blastocoel (iii) Haemoglobin (iv) 12 chambered
- (i) Open (ii) Haemocoel (iii) Haemoglobin (iv) 13 chambered
Q. Which of the following encloses heart in cockroach?
- Pericardial sinus
- Perivisceral sinus
- Perineural sinus
- None of the above