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Quiz 6
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Q.1
Which of the following is not true regarding Periplanata?
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a) Hypognathous head.
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b) Labrum is the upper lip and labium is the lower lip.
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c) Wings extend beyond abdomen in females.
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d) Pronotum is the shield like tergum of prothorax.
Explanation
Answer:(c)
Q.2
Identify the correct statement regarding the nervous system of Periplanata?
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a) Major part of nervous system is distributed in the thorax and abdomen, in the dorsal side.
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b) Cerebral ganglia is paired and fused ganglia above the pharynx.
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c) Nerves originating from the 3rd segmentally arranged ganglia regulate functions of membranous lungs and the 3rd pair of walking legs.
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d) Ventral nerve cord has 3 ganglia in the thorax and 7 in the abdomen.
Explanation
Answer:(c)
Q.3
Which of the following is found in the 7th and 9th segment in earthworm?
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a) Lateral ventricles.
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b) Lateral heart.
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c) Lateral spiracles.
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d) Spiracles.
Explanation
Answer:(b)
Q.4
Which of the following occurs when two earthworms mate juxtaposing opposite gonadial opening?
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a) Internal fertilization, reciprocal fertilization and direct development.
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b) Internal fertilization, cross fertilization and indirect development.
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c) External fertilization, reciprocal fertilization and direct development.
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d) External fertilization, cross fertilization and indirect development.
Explanation
Answer:(c)
Q.5
Incorrect statement regarding male reproductive system in cockroach is:
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a) A pair of testis in 4 – 6 abdominal segments.
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b) Mushroom shaped gland in 6 – 7 abdominal segments.
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c) A pair of spermatheca in 6th abdominal segment.
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d) External genitalia are represented by Phallomeres.
Explanation
Answer:(c)
Q.6
Read the following statements about cockroach: (i) In male cockroach, a characteristic mushroom gland is present in the 6th and 7th segment in abdomen and functions as accessory reproductive glands. (ii) Cockroach is uricotelic. (iii) The fat body and uricose gland in cockroach are glandular in function. (iv) Blood from the sinus enter through ostia into the heart and pumped back again to sinuses. Which of the following statements are correct:
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a) (i), (ii) and (iv).
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b) (ii) and (iii).
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c) (i) and (iv).
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d) (ii) and (iv).
Explanation
Answer:(a)
Q.7
Find out the incorrect statement regarding tracheal system of cockroach?
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a) 10 pairs of spiracles for intake of air.
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b) Spiracles are regulated by sphincters.
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c) Tergo – sternal muscles aid in breathing movements.
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d) Inspiration occurs when tergo – sternal muscles contract.
Explanation
Answer:(d)
Q.8
Tegmina in cockroach is born by the:
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a) First thoracic segment.
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b) Second thoracic segment.
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c) Third thoracic segment.
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d) First abdominal segment.
Explanation
Answer:(b)
Q.9
Read the following statements regarding cockroach: (i) Periplanata americana and Blatta orientalis are the common varieties seen in India. (ii) The forewings are also called elytra or tegmina. (iii) The dorsal Sclerite is called terga and ventral Sclerite is called sternum and the lateral Sclerite is called pleuron. (iv) Cockroach shows a hypognathous head. Of the above statements:
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a) Two are true.
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b) Three are true.
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c) Only one is true.
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d) Four are true.
Explanation
Answer:(d)
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