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WorksheetsX-STD LN -13 P-2 Q-2
Total questions: 10
Worksheet time: 5mins
Dense network of tiny blood vessels called
as_______________ containing the haemocoelic fluid
extend in between the cells of the epidermis.
artery
veins
capillaries
both a and b
The blood vessels are replaced by channels called _____________ filled with blood like fluid.
haemocoelic channels
canals
arteries
both a and b
The coelomic fluid contains _________ .
iron
haemoglobin
protein
amino acid
The subpharyngeal ganglion lies below the pharynx and is formed by the fusion of _______________.
three pairs of ganglia
four pairs of ganglia
five pairs of ganglia
six pairs of ganglia
In leech, excretion takes place by segmentally arranged paired tubules called _______.
flame cells
nephridia
spiracles
green glands
Leech is hermaphrodite because both
the male and female reproductive organs are
present in the ____________.
different animal
same animal
individual animal
none of the above
In Leech ,There are eleven pairs of testes, one pair
in each segment from _______-.
13to 23 segments
11 to 21 segments
12 to 22 segments
10 to 20 segments
The common oviduct opens into a pear-shaped _________- which lies mid-ventrally in the posterior part of the 11th segment.
uterus
vagina
cervix
fallobian tube
The __________ inside the mouth, causes a painless Y-shaped wound in the skin of the
host.
two jaws
three jaws
four jaws
five jaws
The salivary glands produce ________ which does not allow the blood to coagulate.
hirudin
saliva
amylase
starch
