171.
During the process of blood coagulation vitamin K helps in the
A
Formation of thromboplastin
B
Formation of prothrombin
C
Conversion of prothrombin to thrombin
D
Conversion of fibrinogen to fibrin
Answer :
Formation of prothrombin
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172.
Melanin protect from
A
U.V. rays
B
Visible rays
C
Infrared
D
X-rays
Answer :
U.V. rays
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173.
Which type of connective tissue present in the wall of bronchiols
A
White fibrous C.T.
B
Areolar C.T
C
Yellow fibrous C.T.
D
Reticular C.T
Answer :
Yellow fibrous C.T.
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174.
Which bone derived from skin
A
Skull bones
B
Clavicae
C
Flat bones
D
All of the above
Answer :
All of the above
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175.
Mairr character for the distinction between male and female cockroach
A
Antennae
B
Mandibles
C
Anal cerci
D
Anal styel
Answer :
Anal styel
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176.
Which type of sweat glands secrete a pale sweat
A
Eccrine
B
Apocrine
C
Holocrine
D
Endocrine
Answer :
Apocrine
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177.
Which type of cell is known as cart wheel cell
A
Mast cell
B
Plasma cell
C
Reticular cell
D
Adipse cel
Answer :
Plasma cell
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178.
The body cavity of cockroach is called
A
Pseudocoel
B
Coelom
C
Hydrocoel
D
Haemocoel
Answer :
Haemocoel
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179.
Transverse channels present in long bones of mammals
A
Osteal's canal
B
Haversian's canl
C
Volkmann's canal
D
Vascular canal
Answer :
Volkmann's canal
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180.
The cockroach of genus Blatta is also called
A
German cockroach
B
Australian cockroach
C
Oriental cockroach
D
American cockroach
Answer :
German cockroach
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