A well-balanced breakfast includes foods from at least three out of the five food groups. Whole grain breads and cereals; low-fat dairy products, and fruit are typical breakfast choices. Choosing a high-fiber cereal with low-fat milk or yogurt for breakfast has been linked to improved weight or weight loss.
The most simple viruses have only two parts: 1) a genome (DNA or RNA) that is a blueprint with instructions for making more viruses and 2) a capsid protein shell that protects the genome.
Once common throughout Africa and Asia, elephant numbers fell dramatically in the 19th and 20th centuries, largely due to the ivory trade and habitat loss.
