The correct answer is neurons.
The neurons are specialized cells which are responsible for transmitting messages throughout the body. Neurons are the basic units of the nervous system and its most important part is the brain. It receives incoming information and send a signal to other neurons, muscles, or glands accordingly.
Answer:
From food
Explanation:
Food energy is a chemical energy used by humans through the process of cellular respiration. Food contain macromolecules such as lipids, proteins, carbohydrates, water, vitamins, and minerals that are necessary for the human metabolism and they are broken down and used by the series of metabolic steps (glycolysis, Krebs cycle, electront transport chain and oxidative phosphorilation). Digested macromolecules should be used either as a source of energy or as building blocks for the cell.
At the end of catabolic processes within an organism food energy is transformed into energy usable by the cell-ATP.
carbon, the fundamental component for all the macromolecules.
Mitochondria (The powerhouse of the cell). Muscle cells need more energy since they work to support the body, lift things, etc. Epithelial cells don't need as much energy since they only line organs/blood vessels and don't need to use as much energy.
Answer:
The Answer is The appearance of hard parts
Explanation:
