Practice IB Biology Topic A - Unity and Diversity with authentic exam-style questions for both SL and HL students. This question bank focuses on the exact syllabus content for A - Unity and Diversity and mirrors Paper 1A, 1B, 2 style where relevant.
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According to the morphological species concept, how are organisms classified as belonging to the same species?
In a population of genetically identical bacteria, exposure to different environmental conditions results in varied protein expression. What does this demonstrate about biological variation?
Water molecules contain polar covalent bonds due to unequal sharing of electrons. What is the result of this polarity?
In plant tissues, adhesion between water and cellulose supports water movement. What would be the likely consequence if plant cell walls were composed of hydrophobic material?
What allows complementary base pairing to occur between strands of DNA?