Which sentence supports the main idea that online shopping has made shopping easier and more convenient? a. some people don’t like online shopping because it’s hard to judge product quality online. b. shoppers no longer need to leave the house or spend hours at the mall to make purchases. c. although online shopping is booming, most businesses don’t have well-maintained online stores. d. more than half of online shoppers exit online stores if they are bored by the checkout process.

Which of the following statements is correct in hour our immune system responds to a potential pathogen? a. the adapted immune system will call on the innate immune system to destroy the pathogen. b. b cells will start reading the antigen code immediately and call t cells to assist in destroying the pathogen. c. the skin will be the first line of defense, and then the many phagocytes in the bloodstream will attempt to consume the possible pathogen. d. the t-cells in the adapted immune systems are the first to recognize the pathogen vaccines are weakened forms of disease causing microorganisms, which are given to patients to prevent disease. after the vaccine is administered, the immune system responds by creating a(n) to recognize the a. antigen, antibody b. antibody, antigen c. antibody, antibiotic d. antibiotic, antibody