Infection is the invasion of an organism's body tissues by disease-causing agents, their multiplication, and the reaction of host tissues to these organisms and the toxins they produce. Infectious disease, also known as transmissible disease or communicable disease, is illness resulting from an infection.
Since he use over 2800 pea plants with the same experiment it made his actual results approach the results predicted by probability
C) His work proving that unseen bacteria can cause disease.
Answer:
Because of different abiotic factors (Temp, humidity, ect.)
