141. Muscle cells of Ascaris are arranged in

A Coelo myrarian
B Polymyarian
C Holomyarian
D Platymyarian
Answer :   Coelo myrarian
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142. An insect regarded as greatest mechanical carrier of diseases is

A Pediculus
B Cimex
C Musca
D Xenopsylla
Answer :   Musca
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143. Water vascular system of Echinoderms is formed by

A Coelom
B Ectoderm
C Endoderm
D All of the above
Answer :   Coelom
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144. Cranium is absent in

A Protochordata
B Vertebrata
C Craniata
D All of the above
Answer :   Protochordata
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145. Which of the following is not a parasitic adaptation of Ascaris

A Thick reistant cuticle
B Capacity of anaerobic respiration
C Muscular body wall
D Pseudo segmentation
Answer :   Pseudo segmentation
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146. Which animal has nerve net but not brain

A Amoeba
B Hydra
C Sponge
D Cockroach
Answer :   Hydra
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147. The cervical vertebrae in humans is

A same as in whale
B more than that in rabbit
C double than that of horse
D less than that in giraffe
Answer :   same as in whale
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148. Prochordates lack

A Cranium and vertebral column
B Jaws and vertebral column
C Paried appendages
D All of the above
Answer :   All of the above
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149. Which of the following is missmatched

A Trichuris - whip worm
B Loa-loa - eye worm
C Ancylostoma - pin worm
D Ascaris - found worm
Answer :   Ancylostoma - pin worm
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150. Members of phylum Arthropoda lack one of the follwoing fratures

A External skeleton made of chitin
B Compound eyes
C Excretion by malphigian tubules
D Usually a close type of blood vascular system
Answer :   Usually a close type of blood vascular system
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