Question

why must bloodstained materials be packaged in paper rather than plastic? * 1 point
to preserve dna evidence
to prevent the growth of mold
to make the evidence more visible
to comply with court regulations

Explanation:

Bloodstained materials are biological evidence. Packaging them in paper (which is breathable) allows moisture to evaporate. In plastic (non - breathable), moisture gets trapped. Trapped moisture creates a moist environment that is ideal for mold growth. Mold can degrade the biological material (including DNA). So, packaging in paper helps prevent mold growth which in turn helps preserve the integrity of the evidence (including DNA to some extent, but the primary direct reason related to the packaging material property is mold prevention). Making evidence visible is not related to the packaging material type (paper vs plastic). Court regulations may have guidelines, but the fundamental reason based on material properties is mold prevention.

Answer:

To prevent the growth of mold