Which term indicates changes in rocks due to the injection of magma?

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

The probability of producing a normal child by two parents who are carriers for an autosomal recessive disorder is

What is the most appropriate method of gaining weight (muscle mass)