461. Exoskeleton originated form (Eg feathers, nail, horn, hoofs)

A Connective tissue proper
B Epithelium tissue
C Skeletal tissue
D Vascular tissue
Answer :   Epithelium tissue
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462. A. Periplaneta americana is nocturnal, omnivorous, household pest.
R. It is because it acts as scavenger

A A is true but R is false
B A is false but R is true
C Both A and R are true and R is correct explanation of A
D Both A and R are true but R is not correct explanation of A
Answer :   Both A and R are true and R is correct explanation of A
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463. Collagen and elastin are formed by

A Macrophages
B Fibroblasts
C Mast cells (5) Adipocytes.
D Chondrocytes
Answer :   Fibroblasts
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464. Collaterial gland of cockroach help in

A Fertilzation
B Formation of ootheca
C Copulation
D Formation of oothecal chamber
Answer :   Formation of ootheca
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465. The main function of ligament is

A Joining of two bones
B Joining of muscles
C Joining of muscles to bone
D Joining of muscle to nerves
Answer :   Joining of two bones
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466. Larva is not found in the life of

A Pheretima
B Taenia
C Musca
D Rana
Answer :   Pheretima
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467. Lymph is differ from blood having

A More RBC less WBC
B Less RBC more WBC
C No RBC less WBC
D No RBC more WBC
Answer :   No RBC less WBC
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468. The term 'History' was coined by

A Malpighi
B Bayer
C Hartwig
D Mayer
Answer :   Mayer
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469. Select the correct option with respect to cockroaches

A The fore wings are tegmina which are used in flight
B Malpighian tubules convert nitrogenous wastes into urea
C Males bear short anal styles not present in females
D Nervous system comprises of a dorsal nerve cord and ten pairs of ganglion
Answer :   Males bear short anal styles not present in females
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470. An example of merocrine gland is

A Sebaceous gland
B Pineal gland
C Salivary gland
D Mammary gland
Answer :   Salivary gland
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