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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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Answer in one word or one line.

(v) Where do you find Malpighian tubules?

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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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Prostomium	Peristomium
It is the lobe which overhangs the mouth and is used as a wedge to force open cracks in the soil.	It is the first body segment or buccal segement. It surrounds the mouth opening.
It is not a true segment and does not contain any organ. It is sensory in function.	Peristomium is the first true segement and contains organs.