Short Answer TypeCommon name of some animals are given in Column A, write their scientific name in Column B.
Column A Column B
a. Tiger ________________
b. Peacock ________________
c. Housefly ________________
Complete the following statement :
a. In Cockroach grinding of food particle is performed by ____________
b. Malpighian tubules help in removal of ___________________________
c. Hind gut of Cockroach is differentiated into ______________________
d. In Cockroach blood vessels open into spaces called ______________
Long Answer Type
Multiple Choice QuestionsWhat external changes are visible after the last moult of a cockroach nymph?
Mandibles become harder
Anal cerci develop
Both fore wings and hind wings develop
Both fore wings and hind wings develop
C.
Both fore wings and hind wings develop
In cockroach, development is pauro metabolous. The nymph grows by moulting about 13 times to reach the adult form. The next to last nymphal stage has wings. Anal cerci are a pair of jointed filamentous structures in 10th segment of both sexes. The labium is a lover lip and a pair of mandibles are present in mouthparts of a cockroach.
The function of the gap junction is to
performing cementing to keep neighbouring cells together
facilitate communication between adjoining cells by connecting the cytoplasm for rapid transfer of ions, small molecules and some large molecules.
separate two cells from each other
separate two cells from each other
The body cells in cockroach discharge their nitrogenous waste in the haemolymph mainly in the form of
ammonia
potassium urate
urea
urea
Pheretima and its close relatives derive nourishment from
sugarcane roots
decaying fallen leaves and soil organic matter
soil insects
soil insects
Choose the correctly matched pair.
Tendon - Specialised connective tissue
Adipose tissue - Dense connective tissue
Tubular parts of nephrons - Cuboidal epithelium
Tubular parts of nephrons - Cuboidal epithelium
Compared to those of humans, the erythrocytes in frog are
without nucleus but with haemoglobin
nucleated and with haemoglobin
very much smaller and fewer
very much smaller and fewer
Select the correct statement from the ones given below with respect to Periplaneta americana
Nervous system located dorsally, consists of segmentally arranged ganglia joined by a pair of longitudinal connectives
Males bear a pair of short thread like anal styles
There are 16 very long Malpighian tubules present at the junctions of midgut and hindgut
There are 16 very long Malpighian tubules present at the junctions of midgut and hindgut
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