Answer: evolution i think
Explanation:
sorry if its wrong
I think the answer is C. capsid
Sand is more Permeable. It is the smallest, and can diffuse the easiest over a membrane.
1. Soil is a kind of dirt that keeps heat
2.dirt has nutrients that plants need
3. Wet or really hard and cracking
A double blind experiment with ensures that neither the researcher nor participant is aware of which group is receiving a particular treatment.