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!
Answer: d
The respiratory and circulatory systems bring oxygen and nutrients to the cells. The respiratory and circulatory systems work together to maintain homeostasis. The respiratory system moves gases into and out of the blood. The lungs contain the bronchi, bronchioles, and alveoli.
Explanation:
