9. Which of the following best describes artificial selection? It is the process by which plants have evolved to fill in ecological niches over time.
O
It is the process of manipulating genes in a lab to meet human needs
It is how animals are trained to do ticks
It is when humans chose beneficial traits in each generation of a spices
O It is when plants and animals chose to meet human needs

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