Question

Which of the following is the key criterion in the biological species concept?

Asked in UP PGT (Biology) · 2026
Biological Classification · Biology
Exam PYQ4 Options
BiologyDiversity in The Living WorldBiological ClassificationTaxonomyUP PGT (Biology)2026
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Chlorophyll absorbs light energy mainly in the blue and red regions.

Correct AnswerCorrect option for this question
Option C — Reproductive compatibility

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Questions Asked from Protista & Living World: Taxonomy & Taxonomic Aids in Previous Exams

See how often Protista & Living World: Taxonomy & Taxonomic Aids has appeared in previous-year questions across major government exams.

High Exam Frequency
12UPSC Questions Asked in These Years:2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2020, 2021, 2022, 2023
9SSC Questions Asked in These Years:2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
9Railways Questions Asked in These Years:2016, 2018, 2020, 2021, 2022, 2023, 2024, 2025, 2026
11State PSC Questions Asked in These Years:2013, 2014, 2015, 2017, 2018, 2019, 2020, 2022, 2023, 2024, 2025
Protista & Living World: Taxonomy & Taxonomic Aids has appeared in 41 previous-year exam questions, most frequently in UPSC, State PSC and SSC.
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