The scientific name for humans is Homo sapiens.
Answer: Uncertainty
Explanation:
The principle of science used here is uncertainty. The various doctors attributed their sickness to hookworm gotten from cat and dogs but the uncertainty here is that it wasn't described they had access to the water because they were disappointed by the feces of dogs and cat found around, and how they all got the same rashes at the same time is questionable
<span>Macro nutrients
constitute the majority of an individual’s diet, “thereby supplying
energy, and the essential nutrients that are needed for growth,
maintenance, and activity”. Macro nutrients include carbohydrates,
proteins, fats, macro minerals, and water. Carbohydrates, proteins, and
fats are interchangeable as sources of energy, with fats yielding 9
calories per gram, and protein and carbohydrates each yielding 4
calories per gram.
Micro nutrients are vitamins and trace minerals. Vitamins and trace
minerals are labeled as micro nutrients because the body only requires
them in very small amounts. Vitamins are organic substances that we
ingest with our foods, and that “act as catalysts, substances that help
to trigger other reactions in the body”. Trace minerals are inorganic
substances that once ingested play a role in a “variety of metabolic
processes, and contribute to the synthesis of such elements as glycogen,
protein, and fats.</span>
