Answer: See explanation below.
Explanation:
18. By nitrogen fixation by leguminous plants. Nitrogen content is replenished naturally in the soil due to the presence of a particular bacteria in the soil.
19. Washing will help remove bacteria from the surface of fruits and vegetables. One should not ever consume bacteria, which is why we wash our fruits and vegetables.
20. Biological control is the beneficial action of parasites, pathogens, and predators in managing pests and their damage. Biocontrol provided by these living organisms, collectively called “natural enemies,” is especially important for reducing the numbers of pest insects and mites.
21. You need to get pictures of agricultural machines (machines used for farming).
22. Microorganisms are broadly classified in four groups: Bacteria, fungi, protozoa, and algae.
23. Viruses are even smaller than bacteria, because they aren't even a full cell. They are simply genetic material.
24. The culture of bacteria called “Lactobacillus delbrueckii” produces yogurt.
25. Yeast has commonly been used for the making of bread, for example.
26. In anaerobic respiration yeast breaks down glucose, forming ethanol and carbon dioxide as its waste products. When the glucose is nearly used up, and provided that oxygen is present, yeast uses the ethanol as a respiratory substrate to produce carbon dioxide and water in aerobic respiration.
27. Typically, the term is used to describe an infectious microorganism or agent, such as a virus, bacterium, protozoan, prion, viroid, or fungus. A pathogen may also be referred to as an infectious agent, or simply a germ.
28. Penicillins and Cephalosporins are two.
29. In 1796, the British doctor Edward Jenner did.
30. Fermentation is the chemical breakdown of a substance by bacteria, yeasts, or other microorganisms, typically involving effervescence and the giving off of heat.
31. Refrigeration is the process of subjecting food or drink to cold in order to chill or preserve it.
32. A vaccine is a biological preparation that provides active acquired immunity to a particular infectious disease.
33. These diseases are considered as curse words, so they will be spelled differently: 3bola and C0VID-19
34. Aster yellows, bacterial wilt, and blight are all examples.
