271. Chromophil cells in earthworm are found in

A Lymph glands
B Pharyngeal glands
C Blood glands
D All of the above
Answer :   Pharyngeal glands
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272. Nails, claws, horns and hoofs are formed by

A Cartilage
B Bone
C Stratum corneum of skin
D Skin muscles
Answer :   Stratum corneum of skin
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273. Mast cells secrete

A myoglobin
B histamine
C hemoglobin
D hippurin
Answer :   histamine
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274. Vitreous humour is

A Reticular
B Areolar
C Adipose
D Mucoid connective tissue
Answer :   Mucoid connective tissue
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275. Body segments are difinite and well marked in

A Hydra
B Taenia
C Earthworm
D Cockroach
Answer :   Cockroach
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276. Number of WBCs per mm3 of human blood is

A 8000
B 7000
C 6500
D 6000
Answer :   8000
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277. Formation of cartilage bones involves

A deposition of bony matter by osteoblasts and resorption chondroblasts
B deposition of bony matter by osteoclasts and resorption by chondroblasts
C deposition of bony matter by osteoclasts only
D deposition of bony matter by osteoblasts only
Answer :   deposition of bony matter by osteoblasts and resorption chondroblasts
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278. What external changes are visible after the last moult of a cockroach nymph?

A Anal cerci develop
B Both fore wings and hind wings develop
C Labium develops
D Mandibles become harder
Answer :   Both fore wings and hind wings develop
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279. Inner lining of female urethra is made up of

A St. Squamous epi
B St. Cuboidal epi
C St. columnar epi
D Transitional epi
Answer :   St. Cuboidal epi
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280. Setae are found in all body segments of earthworm except

A Last segment
B First segment
C Clitellar segment
D First, last and clitellar segments
Answer :   First, last and clitellar segments
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