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Select the correct statement from the ones given below with respect to Periplaneta americana

A

Nervous system located dorsally, consists of segmentally arranged ganglia joined by a pair of longitudinal connectives

B

Males bear a pair of short thread-like anal styles

C

There are 16 very long Malpighian tubules present at junction of midgut and hindgut

D

Grinding of food is carried out only by mouth parts

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The correct Answer is:
B
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MODERN PUBLICATION-STRUCTURAL ORGANISATION IN ANIMALS-COMPETITION FILE (OBJECTIVE TYPE QUESTIONS) (MULTIPLE CHOICE QUESTIONS)
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  2. Compared to those of humans, the erythrocytes in frog are

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  3. Select the correct statement from the ones given below with respect to...

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  4. What is common between earthworm and Periplaneta?

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  5. The ingrowth of exoskeleton in the head of cockroach is called

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  6. Which of the following is absent in the coelomic fluid of earthworm ?

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  7. Myoglobin is present in

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  8. A polysaccharide constituent found in the matrix of cartilage is:

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  9. In which segment in earthworm, the ovary is present?

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  10. Blood-brain barrier is formed by

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  11. Ommatidia serve the purpose of photoreception in

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  12. The secretion of tears, milk sweat and oil are functions of which of t...

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  13. Collagen fibres are characteristic of which tissue?

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  14. Which one of the following salts predominates in bone matrix?

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  15. Read the following statements and choose the correct option (A). Bl...

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  16. Find the wrongly matched pair:

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  17. Thick filaments in muscles are polymerised proteins of

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  18. In muscle, the functional unit of contraction is

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  19. Specialized chemoreceptors located on the anterior part of earthworms ...

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  20. In cockroaches, digestive juice is secreted by the

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