To improve your aerobic capacity<span>, complete 20-30mins of work at </span>your<span> 3-5km race pace broken down into intervals, with 50-80% of the interval time added as recovery. For example, a runner with a 5km PB of 25mins could run 6 x 1km repeats, aiming to run each in just under 5mins, with 2:30mins recovery.</span>
Red blood cells are found in blood vessels!
Answer:C. structure-function claim
Explanation: Structure-Function claim is a claim made on the label or other parts of the product to signify that the nutrients contained in the products have the capacity to affect the functions or structure of the body system of the user. Examples include "Calcium builds strong bones" "Vitamin A improves your the functioning of the Eyes". These claims are usually verified by the FDA(FOOD AND DRUGS ADMINISTRATION) a United States of America agency.