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Structural Organisation In Animals

Question
CBSEENBI11001714
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Distinguish between the following

(a) Prostomium and peristomium

Solution

 

 

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.

Some More Questions From Structural Organisation In Animals Chapter

Answer in one word or one line. 

(v) Where do you find Malpighian tubules?

Answer the following

(i) What is the function of nephridia?

Answer the following:

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

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

Draw a labelled diagram of alimentary canal of a cockroach.                                                   

Distinguish between the following

(a) Prostomium and peristomium

Distinguish between the following

(b) Septal nephridium and pharyngeal nephridium

What are the cellular components of blood?

What are the following and where do you find them in animal body

(a) Chondriocytes

What are the following and where do you find them in animal body

(b) Axons

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