What were the main challenges facing investigators who were collecting evidence in the case

What do animals wth echolocation have in common other than echolocation

Which of these resources is used worldwide to make construction products, pottery, and porcelain

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