An ecological effort by a nonprofit organization has targeted abandoned farms as a way to help local farmers earn more money. One particular region in the foothills, which had been over-farmed, now has plants and a few young trees growing there. Which of the following strategies should the organization implement as sustainable practice(s) to promote soil quality? I. Utilize pesticides generously to ensure that vegetation isn't lost
II. Encourage planting of crops in rows perpendicular to the hill slope
III. Plow deeply to access the richer soil under the depleted topsoil

II only
III only
I and II only
II and III only

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