True. Food provides nutrients and energy which keeps us healthy.
Answer:
1. The retina contains three kinds of colour receptors
Explanation:
Young-Helmholtz theory color vision says human can perceive colour due to the presence of colour receptors in the retina that receives colour in various wavelengths
<span>The question is asking what the the % daily values found on a food label are based on. Those values give us the information for example that some food is 30% of necessary daily calories or that it covers 30% of the need for Vitamin C. This is based on the needs of an average adult person, who needs to consume 2000 calories a day.</span><span />
