Please help me ASAP or else I’ll fail

The observations of hooke and van leeuwenhoek documenting the existence of microscopic cells formed the basis of what important theory? a. the cell theory stating that all living things are composed of cellsb. the theory of spontaneous generation, which held that life forms could arise spontaneouslyc. the theory of chemotherapy, or use of antimicrobials to destroy pathogenic organismsd. the germ theory of disease and causative agents

Types of scientific inquiry that biologist engage in that cannot be completely controlled

Why do oceanic plates tend to subduction when colliding with a continental plate