Which observation proves that a cell is a eukaryote
a. the cell uses ribosomes to create protein
b. the cell contains dna
c. the cell contains nucleus
d. the cell has a cell membrane

Which of the following best describes the relationship between glucose and complex molecules such as hormones?

How do the evolutionary chart and the video support the claim that all living things are made up of cells?

Select the correct answer from each drop-down menu. the lac operon in e.coli regulates genes that code for enzymes required for breakdown of lactose. the lac operon is operon that is activated in the presence of .