D is the correct answer to this question. Here is a chart of energy transfer.
Homeostasis is the equilibrium of a cell.
Autotrophs make their own food through photosynthesis.
Mitochondria undergoes cellular respiration and is often referred to as the "powerhouse of the cell".
Answer:
Glucagon signals the liver to start producing glucose.
Explanation:
Glucagon signals the liver to start producing glucose from the breakdown of amino acids through gluconeogenesis process. When the glucose level decreases in the body due to fasting or starvation, the pancreas release glucagon which provides signals to the liver to produce glucose form non carbohydrates substances present in our body. This production of glucose increases the concentration of glucose in the blood and the body used this glucose for the generation of energy molecules in the form of ATP.
I am more of a chemistry person, but my best answer is the double-helix structure. The DNA rotate around a central point allowing it to keep a constant distance
The way that I know it is that cells make up tissue, tissue makes up organs, and organs make up organ systems.
