Spiracles found in cockroach are |
|||
a) |
2 pairs in thorax and 100 pairs in abdomen |
b) |
2 pairs in thorax and 6 pairs in abdomen |
c) |
2 pairs in thorax and 8 pairs in abdomen |
d) |
2 pairs in thorax and 4 pairs in abdomen |
Spiracles found in cockroach are |
|||
a) |
2 pairs in thorax and 100 pairs in abdomen |
b) |
2 pairs in thorax and 6 pairs in abdomen |
c) |
2 pairs in thorax and 8 pairs in abdomen |
d) |
2 pairs in thorax and 4 pairs in abdomen |
(c)
Spiracles are 10 in number, out of these 2 pairs are found in thoracic portion, while rest 8 pairs are found in abdominal portion.
The phylum-Mollusca lack, which one of the following |
|||||||
a) |
Visceral hump |
b) |
Malpighian tubules |
c) |
Gills |
d) |
Radula |
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