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Read the following statements about cockroach.
(i) In male cockroach, a characteristic mushroom shaped gland is present in the $6^{t h} - 7^{t h}$ abdominal segments which functions as an accessory reproductive gland.
(ii) Cockroach is uricotelic.
(iii) The fat body and uricose glands are glandular in function.
(iv) Blood from sinuses enter heart through ostia and is pumped anteriorly to sinuses again.
Which of the above statements are correct?

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Important Questions on Structural Organisation in Animals

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IMPORTANT

MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 7 - Structural Organisation in Animals>MCQS CORNER>Q 81

Which of the following statements is correct regarding cockroach?

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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 7 - Structural Organisation in Animals>MCQS CORNER>Q 82

Study the given figure of the reproductive system of male cockroach.
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In which of the labelled parts are the sperms stored?

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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 7 - Structural Organisation in Animals>MCQS CORNER>Q 83

In cockroach, the ootheca is formed by the secretion of-

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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 7 - Structural Organisation in Animals>MCQS CORNER>Q 84

The development of Periplaneta americana is-

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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 7 - Structural Organisation in Animals>MCQS CORNER>Q 85

About how many times does the nymph of the Periplaneta americana undergo moulting before becoming an adult?

HARD

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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 7 - Structural Organisation in Animals>MCQS CORNER>Q 86

Consider the following four statements

(i) - (i v)

and select the correct option stating which ones are true

(T)

and which ones are false

(F)

.
(i) In male cockroach, genital pouch or chamber lies at the hind end of abdomen bounded dorsally by

9^{t h}

and

10^{t h}

terga and ventrally by the

9^{t h}

sternum.
(ii) In cockroaches, the haemolymph is composed of colourless plasma and haemocytes.
(iii) In a female cockroach each ovary is formed of a group of ten ovarian tubules or ovarioles, containing a chain of developing ova.
(iv) In cockroach the nymph grows by moulting about

13

times to reach the adult form.

	$A$	$B$	$C$	$D$
(i)	$F$	$T$	$F$	$T$
(ii)	$F$	$F$	$T$	$T$
(iii)	$T$	$T$	$F$	$T$
(iv)	$T$	$F$	$T$	$F$

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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 7 - Structural Organisation in Animals>MCQS CORNER>Q 87

Which of the following statements is incorrect about the frog?
(i) Eyes are bulged out and covered by a nictitating membrane that protects them while in water.
(ii) On either side of the eyes a membranous tympanum (ear) receives sound signals.
(iii) The hind limbs end in four digits and they are larger and muscular than fore limbs that end in five digits.
(iv) Feet have webbed digits that help in swimming.
(v) Frogs exhibit sexual dimorphism.

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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 7 - Structural Organisation in Animals>MCQS CORNER>Q 88

The figure given here shows diagrammatic representation of internal organs of frog.
Identify

A

E

and select the correct option.
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Important Questions on Structural Organisation in Animals

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