Which of the following is included in the cell theory?
(there's 3)
a. the basic unit of life is the cell.

b. cells come from preexisting cells

c. all living organisms are composed of cells.

d. pond water is made of cells.

How do you transfer mrna into codons ? i'm so confused : (

Which phrase is the best summary of the model shown? a. the transfer of the sun's energy through trophic levels b. a series of aerobic and anaerobic reactions c. a transformation of light energy into chemical energy d. the breakdown of food molecules

Ronald wants to see if a new shower cleaner works better in removing soap than his old cleaner. he uses the new cleaner on one half of the shower tiles and his old cleaner on the other half. identify the independent and dependent variables in this experiment. enter your answer in the space provided.