provide a gold standard of exercise habits and performance against which age-related decline that is not accelerated by physical disuse and disease can be compared.

Minute vessels that collect blood from the capillaries and join to form veins are: venoles venules viscera venoids

Although animals share many common characteristics, there is also a great amount of diversity found in animals. which animals are ectothermic, obtain dissolved oxygen in water through gills, have scales, have fins, and live in water?

How could you find out if that advice is based in scientific evidence?