Puzzling clusters of microscopic plants in the ocean are likely caused by giant, swirling circular currents, scientists now reveal, providing a new view of how life travels around the globe. About half of the Earth's oxygen is generated by tiny, single-celled plants known as phytoplankton that live in the planet's oceans, rivers and lakes.
If you consume 50 percent of your energy intake from carbs and 20 percent from protein, aim to eat 30 percent of your calories from fat, which is equivalent to 40 grams when following a 1,200-calorie weight loss diet and 53 grams of fat when consuming 1,600 calories per day.any well-balanced, reduced-calorie diets contain about 50 percent of calories from carbohydrates, which is equivalent to 150 grams when consuming a 1,200-calorie diet, and 200 grams of carbs when following a 1,600-calorie weight loss plan.
Date Verified: 7.28.2013. The body fat percentage is the total mass of fat divided by total weight. Body fat is necessary to maintain life and reproductive functions. The percentage of essential body fat for women is greater than that for men, due to the demands of childbearing and other hormonal functions. The percentage of essential fat is 2â5% in men, and 10â13% in women.