What is a body of extending over a large area that develops and retains specific characteristics, pressure, temperature ,humanity

the element that provides strength to the exoskeletons of clams and oysters is phosphorus. this is so because calcium carbonate is the main component in the shells.

explanation:

image result for how many calories of energy will 20 grams of carbohydrates provide in one gram provides 4 calories

consuming the right balance of protein, carbohydrates and fat can you maintain a healthy weight and optimize your energy levels. protein and carbohydrates both contain 4 calories per gram, while fat provides 9 calories per gram.

name and explain one of the event that occurs during meiosis that increases the variation in offspring even more than simple reproduction?