Women between the ages of 31 and 50 need slightly less, requiring 2,200 calories and 247.5 and 357.5 grams of carbohydrates each day. After the age of 50, active women should eat between 2,000 and 2,200 calories and 225 to 357.5 grams of carbohydrates each day.
There is a special reason that flatworms are flat. Because of their flatness the area of their 'body' is bigger (so a bigger surface area).Through this characteristic, they are able to diffuse more in and out of their endosystem. because.here is a special reason that flatworms are flat. Because of their flatness the area of their 'body' is bigger (so a bigger surface area).
Flat worms have layers of tissues that surround their central gut. They are part of the acoelomates, and are considered hermaphroditic. Their type of cell layers are: an ectoderm, which is the outer covering, an endoderm, which is the lining of digestive spaces, and a mesoderm which is in between the other two.