The slight negative charge at one end of one water molecule is attracted to the slight positive charge of another water molecule. what is this attraction called?
a. -a hydrogen bond
b. -a covalent bond
c. -an ionic bond
d. -a hydrophilic bond

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

Imagine ? person stepping on a pin and pulling his or her foot way look at the réfléchir arc of the scenarios below

Wich organism obtains its energy from dead or decaying matter