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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

Production of two types of spores is known as________________?
A Heterospory
B Homospory
C Heterogamy
D Gamospory
Correct Answer: Heterospory
The space between the overtopped dichotomous branches was occupies by a sheet of _________ cells during evolution of megaphyllas?
A Sclerenchyma
B Chlorenchyma
C Parenchyma
D Collenchyma
Correct Answer: Chlorenchyma
Which of the following statement about alternation of generation in bryophytes is incorrect?
A It involves alternation of morphologically different generations
B Their gametophyte is independent while sporophyte depends upon gametophyte for nutrition.
C Both the gametophyte and sporophytes are haploid generations thus can produce haploids gametes to continue the diploid number on fertilization
D Spore formation occurs through meiosis
Correct Answer: Both the gametophyte and sporophytes are haploid generations thus can produce haploids gametes to continue the diploid number on fertilization
The dichotomously branching system has shape similar to________________?
A U
B R
C Y
D Fork
Correct Answer: Y
In bryophytes fertilization takes place in___________?
A Antheridia
B Archegonia
C water
D Ovule
Correct Answer: Archegonia
Megaphylls are characteristic for____________?
A Ferns
B Seed plants
C Both of these
D None of these
Correct Answer: Seed plants
Horsetails are included in class of____________?
A Sphenopeida
B Lycopsida
C Psilopsida
D Pteropsida
Correct Answer: Sphenopeida
Of the following which one is not the characteristic of the plants included in psilopsida_____________?
A Gametophyte is colourless
B They have mycorrhizal association
C Rhizoids bear Rhizome
D Aerial branches have veinless outgrowths
Correct Answer: Rhizoids bear Rhizome
Hornwarts are included in sub-class of __________?
A Anthoceropsida
B Bryopsida
C Hepaticopsida
D Psilopsida
Correct Answer: Anthoceropsida
Today the land habitat is dominated by__________________?
A Fungi
B Gymnosperms
C Angiosperms
D Tracheophytes
Correct Answer: Tracheophytes
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