Each photosystem consists of molecules of the pigment chlorophyll.

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 phase of the cell cycle ensures that identical copies of the dna are made for daughter cells?

This diagram shows how seed plants are grouped. which is the missing label? bryophytes angiosperms pteridophytes monocots