In which animal does blood flow from the pulmocutaneous circulation to the heart before circulating through the rest of the body

When organisms convert from of energy, what usually results

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

What is a cordon and where is it found