The food chain is a system in which food is connected with the ecosystem. Ex:composers, producers, decomposers,etc.
Answer:
Diffusion is critical in the body for the transport of liquids, such as oxygen from the air into the blood and carbon dioxide from the blood into the air in the lungs, or glucose from the blood to the cells.
Explanation:
Mutation may occur if both copies of DNA molecules do not have the exact same sequence of nucleotides as the original DNA molecule. Mutation can also lead to further problems, in the future.