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Trueman Solutions for Class 11 Biology Chapter 7A

Subjective

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Related questions

(i) Give the common name of Periplaneta americana.
(ii) How many spermathecae are found in earthworm?
(iii) What is the position of ovaries in cockroach ?
(iv) How many segments are present in the abdomen of cockroach?
(v) Where do you find Malpighian tubules ?

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Answer the following:
(i) What is the function of nephridia ?

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

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Mark the odd one in each series :
(a)Maxilla ; manidble ; labrum ; antennae
(b) Protonema ; mesothorax ; metathorax ; coxa.


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Mention the functions of the following
(a) Ureters in frog
(b) Malpighian tubules
(c) Body wall in earthworm.

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

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

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Distinguish between the following
(a) Prostomium and peristomium
(b) Septal nephridium and pharyngeal nephridium

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Mention briefly about the circulatory system of earthworm.

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Draw a neat diagram of digestive system of frog.

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When the head is directed downwards, the condition is called

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Define ecdysis.

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Visual units of compound eyes are called

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Explain sexual dimorphism.

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What is nymph ?

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Describe labium of cockroach.

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Describe the parts of the mouth of a cockroach.

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Describe the structure of a leg of cockroach.

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Explain the following in cockroach:
(i)   Antenna 
(ii)  Gonapophysis 
(iii) Palpifer 
(iv) Palpiger

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Write the names of appendages associated with the head of a cockroach.

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Describe the abdomen of female cockroach. Differentiate between male and female cockroach.

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Describe the external characters of cockroach. What is the importance of the exoskeleton of this insect?

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Describe the alimentary canal of a cockroach and its interaction with mankind.

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One very special feature in the earthworm (Pheretima) is that 

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Which of the following happens in the common cockroach? 

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Frogs differ from humans in possessing 

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Compound eyes are found in 

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The tympanic cavity in frog communicates with pharynx ventrally through

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Fertilization in frog is 

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Earthworms are hermaphrodite and reproduce primarily by

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In earthworms setae are present in all segments except 

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Female genital aperture in earthworm is found in 

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The segment of earthworm in which mouth is situated is called

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

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In the mouth parts of cockroach the galea and lacinia form parts of the 

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Periplaneta belongs to phylum 

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Mushroom gland in cockroach is located in 

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Cockroach is 

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Which of the following part of cockroach leg is attached to thorax ventrally? 

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The clitellum of Pheretima is present in segments 

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The excretory organ of cockroach and other insects are 

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In cockroach the flow of haemolymph is 

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Which one of the following processes during decomposition is correctly described ? 

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In cockroach, the common duct of salivary reservoir opens at the base of the 

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Choose the wrongly matched pair regarding the position of reproductive structures in earthworm.

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The body cells in cockroach discharge their nitrogenous waste in the haemolymph mainly in the form of 

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The first body segment of earthworm is 

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The structure in earthworm which serves as a wedge to force open cracks in the soil is 

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Which among these is not involved in excretion in cockroaches? 

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Frogs

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How many pair of spiracles are present in thorax region of cockroaches? 

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The juvenile hormone promoting the nymphal characteristics of insects, is produced by 

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The molting hormone ecdysone belongs to the category of

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Which of the following statements is incorrect pertaining to cockroach ? 

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In male cockroaches, sperms are stored in which part of the reproductive system?

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Dorsal pores of earthworm are outlets of coelom

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Frog has osmoreceptors in its mouth.

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Cockroach undergoes periodic ecdysis during its growth.

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The secretion of collaterial gland forms the egg case or ootheca in cockroach.

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Match the terms in column I with those in column II

  LIST I LIST II 
 ACompound eye  1 Alimentary canal 
 B Septal nephridia  2 Cockroach 
 COpen circulatory system  3 Mosaic vision 
 D Typhiosole 4 Phallomere
 E Genitalia 5 Earthworm

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Objective

0 Qs