Which of the following BEST describes the main advantages a nucleus provides for a cell? A. The nucleus organizes waste transport and protein synthesis for the cell.

B. The nucleus can harness energy from the sun and convert it to a form the cell can use.

C. The nucleus organizes the DNA and allows for careful regulation of gene expression.

D. The nucleus houses the DNA and RNA for the cell.

Which describes radioactive decay of a substance

Which of the following are true about bacteria? select all that apply. bacteria are all around you. bacteria can or harmful. bacteria are multicellular organisms. bacteria can only be found on the human body.

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