IB Biology SL A3.1.1 Variation As Defining Feature of Life Questions

Practise IB Biology SL A3.1.1 by explaining how mutation, meiosis and sexual reproduction generate variation within populations and how data reveal continuous or discontinuous…

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State how mutation, meiosis, recombination or sexual reproduction generate variation between individuals of a species.
Identify continuous variation from population distributions that contain many intermediate values and overlapping ranges.
Use graph or population data to identify the type of variation and cite the biological evidence for that classification.

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Study A3.1.1—Variation as defining feature of life conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

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Psammonobiotus balticus belongs to a group of protists (unicellular eukaryotic organisms) that have a shell surrounding most of the cell, which provides shelter from predators. The graph shows the frequency of varying shell lengths in a population of P. balticus.

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State, giving a reason, the type of variation shown by shell length.

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IB Biology SL A3.1.1 Variation As Defining Feature of Life Questions question 1