Crab shells are a water based carbon cycle becuase they have built in reservoirs added to their exoskeleton they add to the. Two-way carbon exchange so Be
LIPIDS are a large and varied groups of molecules that are usually not soluble in water.
C, because it protects the cell from the outside environment
Answer:
The roots organ is genereally placed under the soil and may undero variious modifications. The roots are present in plant that help them to absorb water and nutrient from the soil.
Some plant roots contains the bacteria that helps in the conversion of nitrogen into ammonium ions. The plants changes the roots because the rhizobium present in plant roots helps in the conversion of nitrogen so that it can be used by the plants. The Rhizobium produces ammonium (NH4+) ions.
