The best answer from the choices given would be option A. The luminol test is capable of detecting bloodstains diluted up to 100,000 times. However, the correct value here is 300,000. The luminol test can still read up to that value. Luminol test has found some great application in crime scene investigations. It is able to find traces of blood even if someone has cleaned or removed stains.
The answer to this question would be <span>A.) It provides energy and fights infections.
The nutrient is a substance that needed to maintain life. This included carbohydrate which gives most energy, an amino acid that makes protein and used for making cells, or vitamin for reaction coenzyme.
The option in this question is not clear and I think all of them can be said as a benefit of nutrient. The option A is about carbohydrate, option B and C about protein/amino acid and option C about vitamin.
But the most vital need for an organism is energy, so I think A will be the best option if you need to choose only one.</span>
It indicates it contains 50 percent iron ?
B) To reduce chances of falls
