Answer:
Brain.
Explanation:
When you become too cold, your hypothalamus will signal your brain to raise the temperature.
the <em>wavele</em><em>ngth</em> of light determines the color
Digestive system
digestive system
digestive system
LIpids
Protein
Nucleic Acid
carbohydates
Lipids are commonly refers to as fats and they contain the most energy because when body burn lipids for fuel, it released more energy when compared to other organic compounds. Also, they come into the body in different forms.
Nucleic acids are DNA and RNA respectively and they make the proteins that are present in almost every structure and perform every function in the body.
Carbohydrates are the largest number of organic molecules present in the body. Thus, carbohydrates are sugars and the simplest sugar is glucose which provides fuel for many organisms including human.
Protein is the most versatile of all organic molecules by making up the structures and performs various functions within organisms. Proteins are made by building block known as amino acids.
While photosynthesis requires carbon dioxide and releases oxygen, cellular respiration requires oxygen and releases carbon dioxide. It is the released oxygen that is used by us and most other organisms for cellular respiration. Without any oxygen, much less ATP would be produced.