Which conditions caused the plant to have the highest rate of photosynthesis? A:CO2 level 600ppm, light intensity of 5000 lux

B:CO2 level 300ppm, light intensity 25000 lux

C:CO2 level 0ppm, light intensity 25000 lux

D:CO2 level 1200 ppm, light intensity 15000 lux

Ineed to get this test done which of the following statements is correct in hour our immune system responds to a potential pathogen? a.) the skin will be the first line of defense, and then the many phagocytes in the bloodstream will attempt to consume the possible pathogen. b.) b cells will start reading the antigen code immediately and call t cells to assist in destroying the pathogen. c.) the adapted immune system will call on the innate immune system to destroy the pathogen. d.) the t-cells in the adapted immune systems are the first to recognize the pathogen