All MCQs for Competitive Exams
MCQSAll MCQs for Competitive Exams
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1186 MCQs
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Topic Notes: Competitive Exams
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Practice MCQs for CSS, PMS, FPSC, PPSC, NTS and Pakistan competitive exam preparation. Use topic-wise questions, answers, and explanations to revise quickly and improve exam accuracy.
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21
What term describes the process where new species evolve from a single ancestral species within the same geographical region?
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22
What term describes the process of speciation where populations are not geographically isolated but develop distinct lifestyles and reproductive barriers?
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23
How are chemical solutions characterized when their pH value is measured to be below 7?
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24
In which year did S. Jonathan Singer and Garth Nicolson propose the fluid mosaic model of the cell membrane?
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25
What is the term for the passive, random movement of molecules from a region of higher concentration to a region of lower concentration?
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26
What is the outermost boundary layer of an animal cell?
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27
What term defines the relative concentration of solutes in a solution compared to the concentration inside a cell?
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28
Which of the following molecules is classified as a biologically active steroid?
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29
What is the biological definition of the term 'pinocytosis'?
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30
What term describes a covalent bond characterized by an equal distribution of electrical charge between atoms?
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