the respiratory system and the circulatory system work closely together to deliver oxygen to cells and to get rid of the carbon dioxide the cells produce.
Proteins are needed for growth and development of human body cells.
Hello Tam121!
The correct answer to your question is false, because estrogen is any group of steroid hormones that promote the development and maintenance of female characteristics of the body. Unlike estrogen, steroids force your body to create testosterone, which has two main effects on your body: Anabolic effects (promote muscle building), and androgenic effects (responsible for male traits, such as facial hair and a deeper voice).
Hope this will help you out!
Sugars and starches belong to Carbohydrates
Fibers and Starches are complex carbohydrates or complex chains of sugars that are used to store energy in plants. Plants also create some simple sugars that they will use for primary energy like Sucrose and Fructose.
Us humans use Glycogen as a complex carbohydrate to store energy in case of starvation, and we use glucose as a simple carbohydrate.
