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.
Answer:
A vaccine works by training the immune system to recognize and combat pathogens, either viruses or bacteria. To do this, certain molecules from the pathogen must be introduced into the body to trigger an immune response. These molecules are called antigens, and they are present on all viruses and bacteria
Explanation:
Because of the nitrogen cycle all of the above answers are correct
The statement which is true about a rhombus is that it <span>is a parallelogram that has all sides equal, opposite sides parallel, and diagonals bisect at right angles - so the second answer is the correct one.
Every rhombus has 4 equal sides, where the opposite ones are parallel. Its diagonals always bisect in the middle, creating a 90 degree angle. </span>
