List the stages of: a. Viral infection of cells b. Reproductive cycle of bacteriophage Genetic engineering / that we use to modifying bacteria. C. Hiconcinoorin

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.

Could someone me with number one you

Veins have a much lower blood pressure than arteries. which of these prevents backflow of blood in veins? a. pressure applied by the heart b. one–way valves in veins c. thin muscular walls of veins