Answer:
<em>Odometer</em>
<em>It</em><em> </em><em>is</em><em> </em><em>measure</em><em>d</em><em> </em><em>by</em><em> </em><em>an</em><em> </em><em>instrument </em><em>called </em><em>odometer</em><em>.</em>
Cells get energy for their functioning through sunlight and other organic food molecules. ATP is a good example of energy pathways through photosynthesis.
The digestive system uses mechanical and chemical methods to break food down into nutrient molecules that can be absorbed into the blood. ... Some animals ues intracellular digestion, where food is taken into cells by phagocytosis with digestive enzymes being secreted into the phagocytic vesicles.