What type of air mass forms over a cold region of the world?

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

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above

Explain how energy from the sub is transformed and passed from one organism to another