Answer:
The Sun
Explanation:
The Sun is the major source of energy for organisms and the ecosystems of which they are a part. Producers, such as plants and algae, use energy from sunlight to make food energy by combining carbon dioxide and water to form organic matter. This process begins the flow of energy through almost all food webs.
C. I believe this is correct
Answer:
Brain structures called the hypothalamus and pituitary gland control the menstrual cycle.
Explanation:
Answer: Anatomy is the study of the structure and relationship between body parts. Physiology is the study of the function of body parts and the body as a whole.
Explanation: Hope this helped! :)
Espero que esto te sirva un poco :)
