In some parts of Hawaii, nonnative grasses have been planted for cattle feed, replacing some of the native rain forest plants.
Which statement describes the most likely impact of the replacement of
rain forest plants with nonnative grasses?
A. The biodiversity of these areas will decrease.
B. Rain forest plants will outcompete nonnative grasses for resources.
C. Less nitrogen will be absorbed from the atmosphere over these areas.
D. Cattle will get fewer nutrients grazing on nonnative grasses than on rain
forest plants.

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