Explanation
Chlorella is a single-celled algae, that grows in fresh water. Chlorella emerged over 2 billion years ago, and was the first form of a plant with a well-defined nucleus. It has been shown to increase the good bacteria in the gastrointestinal (GI) tract, which helps to treat ulcers, colitis, diverticulosis and Crohn's disease. It is also used to treat constipation, fibromyalgia, high blood pressure and high cholesterol. Chlorella has been used to treat cancer and also help protect the body from the effects of cancer radiation treatment. Chlorella provides all of the dietary-essential amino acids in excellent ratios. It is also a reliable source of essential fatty acids that are required for many important biochemical functions, including hormone balance. Chlorella also contains high levels of chlorophyll, $$\beta$$-carotene and RNA/DNA. More than 20 vitamins and minerals are found in Chlorella, including iron, calcium, potassium, magnesium, phosphorous, pro-vitamin A, vitamins C, B complex, E and K, biotin, inositol, folic acid, plus vitamins C, E and K. Chlorella could be used to provide O$$_{2}$$ during space flight trips. The alga can reuse CO$$_{2}$$ during the process of photosynthesis and release O$$_{2}$$ for the use by astronauts. Thus, the correct answer is option C.
Correct option: B
Explanation:
Agar-agar is a natural gelling substance stemming from the cell walls of red algae of the Gelidiaceae family like Gelidium and Gracialaria. It has long been used in several Asian cuisines.
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