What cells in the body constantly undergo mitosis?

What are the formed elements (cell or parts of cell) in blood and what are their functions ?

Restless tectonic plates move (shift) between one and fifteen centimeters per year month day minute

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 .