I think 3 represents photosynthesis, and 4 is cellular respiration being that animals and plants use cellular respiration!
Answer:
A trophic level is a level of an organism in the food web, and can be a producer, primary consumer, secondary consumer, apex predator, decomposer, etc.
Definition. Applied microbiology is a scientific discipline that deals with the application of microorganisms and the knowledge about them. Applications include biotechnology, agriculture, medicine, food microbiology and bioremediation.
