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Biology 1525 MCQs [All-Courses]

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Biology covers key concepts of life, organisms, and human systems with exam-focused notes for PPSC, FPSC, KPPSC, BPSC.,NTS, OTS, AJKPSC. Clear, concise topics help students prepare effectively for competitive tests.

All Topics  1525

The bristles on the body of the cockroach arise from__________?
A Epidermis
B Trichogen cell
C Basement membrane
D Malpighian cell
Correct Answer: Trichogen cell
Melanin pigment in cockroach is found in__________?
A Epicuticle
B Exocuticle
C Endocuticle
D All of these
Correct Answer: Exocuticle
Chitin in cockroach is absent in____________?
A Epicuticle
B Exocuticle
C Endocuticle
D All of these
Correct Answer: Epicuticle
In man which organisms cause abscesses on the skin of arms or legs?
A Ascaris
B Bacteria
C Ring worm
D Suinea worm
Correct Answer: Suinea worm
In many which phylum the body of an organisms is usually divided in there regions called head, thorax and abdomen?
A Arthropods
B Chordata
C Annelida
D Echinodermata
Correct Answer: Arthropods
In all arthropods,the body is covered with a chittinous cuticle which is secreted by the____________?
A Endodermis
B Mesophyll
C Chitin
D Epidermis
Correct Answer: Epidermis
All insects have how many parts of legs?
A 4
B 2
C 3
D 6
Correct Answer: 3
In mouth cavity of many molluscs there is a rasping tongue like structure_________provided with many horny teeth.
A Ligule
B Radula
C Mantle
D Muscle
Correct Answer: Radula
Snails belong to__________?
A Cephalopodsxc
B Gastropods
C Bivalves
D Athropods
Correct Answer: Gastropods
It is stiff rod of special cells surrounded by connecive tissue present in the mid -dorsal region and appears in the embryos of all chordates
A Placenta
B Notochord
C Cranianta
D Ligule
Correct Answer: Notochord
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