Malpigman tubules of insects are:
A.Excretory organs
B.Respirtory organ
C.Endocrine structures
D.None of these
Category: Phylum Arthropoda Mcqs
Number of spiracles in the abdomen of cockroach is:
A.5 pairs
B.6 pairs
C.7 pairs
D.8 pairs
Two pairs of thoracic spiracles in cockroach are found on:
A.Pro- and mesothorax
B.Meso- and methathorax
C.Only on mesothorax
D.Pro- and metathorax
Mandibles are not found in:
A.Cockroach
B.House-fly
C.Spider
D.Mosquito
Maxillary palps in cockroach are:
A.3 jointed
B.5 jointed
C.Antennae
D.Maxillary palps
Structures helping in differentiating male and female cockroaches are:
A.Anal cerci
B.Anal stylets
C.Longer antennae
D.Shorter wings
Which of the two parts in cockroach are fundamentally similar in structure:
A.Anal styles and labrum
B.Mandibles and antennae
C.Maxillae and legs
D.Wings and anal cerci
Cockroach has no RBCs and haemoglobin because:
A.It is an invertebrate
B.It does not respire
C.Its blood does not transport O2 and CO2 as tissues have direct exchange of gases from air
D.Haemocyanin is O2 carrier in its blood
Tentorium in cockroach is:
A.Exoskeleton
B.Endoskeleton
C.Mouth-part
D.None of these
Tarsus of cockroach is:
A.Four jointed
B.Five jointed
C.Seen jointed
D.Unsegmented
