A thoracic segment has:
A.Two sclerites
B.Three sclerites
C.Four sclerites
D.None of these
A.Two sclerites
B.Three sclerites
C.Four sclerites
D.None of these
A.Proventriculus
B.Ventriculus
C.Crop
D.Digestive caeca
A.House-fly
B.Mosquito
C.Cockroach
D.Spider
A.Two plates
B.Three plates
C.Four plates
D.None of these
A.Cnidarians
B.Helminthes
C.Arthropods
D.None of these
A.Haemoglobin
B.Haemozoin
C.Heamozoin
D.None of these
A.Male cockroach only
B.Female cockroach only
C.Both male and female cockroaches
D.None of these
A.Only chitin
B.Body wall and chitin
C.Only epiderms
D.None of these
A.Crustaceans
B.Insects
C.Myriapods
D.Arachnids
A.Proventriculus
B.Ventriculus
C.Crop
D.Oesophagus