Wills argues that certain malarial parasites are especially (i) because they have more recently entered humans than other species and therefore have had (ii) time to evolve toward (iii). Yet there is no reliable evidence that the most harmful Plasmodium species has been in humans for a shorter time than less harmful species.
Blank (i): populous, malignant, threatenedBlank (ii): ample, insufficient, adequateBlank (iii): virulence, benignity, variability
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