Answer:
C
activates a chemotaxic response in certain phagocytic cells
Eruptions at shield volcanoes are only explosive if water somehow gets into the vent , otherwise they are characterized by low-explosivity fountaining that forms cinder cones and spatter cones at the vent, however, 90% of the volcano is lava rather than pyroclastic material.
The particles are locked in space. they are compactly arranged.
Answer:
I believe the answer is a single bacteria cell.