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1. Answer in one word or one line.

(i) Give the common name of Periplanata americana.

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2. Answer in one word or one line.

(ii) How many spermathecae are found in earthworm?

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3. Answer in one word or one line.

(iii) What is the position of ovaries in cockroach?

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Answer in one word or one line.

(iv) How many segments are present in the abdomen of cockroach?

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At the junction of midgut and hindgut in a cockroach.

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Answer the following

(i) What is the function of nephridia?

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7. Answer the following:

(ii) How many types of nephridia are found in earthworm based on their location?

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8. Draw a labelled diagram of the reproductive organs of an earthworm.

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9. Draw a labelled diagram of alimentary canal of a cockroach.

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10.

Distinguish between the following

(a) Prostomium and peristomium

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