Explain what the ampullae of Lorenzini is and explain what it does

Why do we perceive objects as retaining their brightness under different lighting levels?

Most enzyme names end in the

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