Scientists studied a flock of tundra swans that spent the winter along rivers in virginia. the swans migrate in the spring to other locations. what would be the best way for scientists to distinguish between the birds they study in virginia and flocks in the summer location?

Asap many people try to eliminate fat from their diets which is one reason it is necessary for humans to eat fat a) fat is the only way to get energy b) every cell in the body must contain fat c)fat stores less energy than polysaccharides d) saturated fats make blood vessels healthier