Cardiorespiratory System. Consists of the heart, blood vessels, and the respiratory system The _____ circulates blood through the body, carrying oxygen, nutrients, and other key substances to the organs and tissues that need them It also carries away waste products so they can be used or expelled. î î î.
There are two main sources of vitamin A, animal sources and plant sources. Known as retinol, animal sources of this essential vitamin contain preformed vitamin A. Vegetable sources contain carotenoids, such as beta-carotene, which is converted to retinol by the body.itamin A that comes from animal sources is well absorbed and used more efficiently by the body then other sources of the vitamin. The two main sources of vitamin A from animal products are beef liver and turkey giblets. Other sources of this fat soluble vitamin include: 1  Chicken liver. 2  Cod liver oil.
Fruits and Vegetable Sources of Vitamin A. The most frequently consumed fruits and vegetables with vitamin A in the American diet include carrots, cantaloupe, sweet potatoes and spinach, according to the Office of Dietary Supplements.A 1/2 cup serving of boiled carrots contains 13,418 IU of vitamin A, meeting almost five times your daily needs. 1/2 cup serving of boiled spinach contains 11,458 IU of vitamin A, 1 cup of cantaloupe contains 5,411 IU and 1 cup of baked sweet potato with the skin contains 38,436 IU. A 1/2 cup serving of boiled kale and 1 cup of vegetable soup also meet more than 100 percent of your daily vitamin A needs.