Organelles exist within cells, which exist within tissues. Communities exist within ecosystems, which exist in the biosphere.
I can’t refer to anything, so how am I supposed to help :(
Answer: B) It controls the autonomic nervous system and regulates hunger and thirst sensations.
Explanation:
Ocean ridges features form along all types of plate boundaries.
Biomolecules are organic compounds that are present as essential components of living things. There are four major biomolecules namely lipids, proteins, carbohydrates and nucleic acids. Proteins, lipids and glucose are usually used by organisms as energy sources as well as structural components among other functions in living organisms. Nucleic acids are important components that bring about heredity. In this case the appropriate molecule to be chosen by the long distance learner would be carbohydrate because it stores and may be used as a source of energy.