In the figure below, which compares different DNA extraction kits (e.g, MO BIO and PSP), which one of the two trees shows the co-occurrence of microbial taxa? Proportion of max 0 0.2 0.4 0.6 0.8 traction Mark Air Swa Ste Swib Starie Sweb Placenta (MS) 70 Extraction ark Motie Ar SD Mobie Sarie Swab Placenta (MS) Placenta (MS) Matic Draction Dark Extraction Mark Placenta (MS) Extraction Bark tie Placenta (MB) Motic Storie Swab Extraction Bark enta (FS) Motio Motio enta (MS) Swab Vajirel Sa Vaginal Swab Vaginal Swab Vagine Besb fraction Dark Starie Swee Starte Swab Extraction ark Air Swab Air Swab RR888888ERBESRE Placenta Placenta Bea Motic Star Swab 87 Placenta (FS) 70 Ar Swab Ar 90 Air Swap 3898392288 67 MO BIO kit Oral Samples (both kits) PSP kit

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Genetic Evolution

Sexual reproduction produces distinct population variations. Heredity determines the traits and qualities to be passed down to the progeny. Over time, this variation within-species is also affected by the process of human evolution. The study of how genetic variation leads to evolutionary changes is known as genetic evolution. If a trait helps an organism to survive and reproduce, it is more likely to be passed down the generations. It is rare that such traits result in a completely distinct set of traits in descendants than the ancestral population; this can result in the emergence of a new species.