The mitochondria is the main energy-producing organlle both in plants and animals
Answer:
The term pathogen came into use in the 1880s. Typically, the term is used to describe an infectious microorganism or agent, such as a virus, bacterium, protozoan, prion, viroid, or fungus. Small animals, such as certain kinds of worms and insect larvae, can also produce disease.
I think the correct answer is B
D. #4 is the correct answer