3. Give two
examples of ways in which humans depend on other living things.

ex) 1 plants we depend on plants to eliminate carbon dioxide and produce oxygen

ex) 2 many people with disabilities,emotional problems and more depend on a service animal to help them live daily life safely and keep them calm

photosynthesis makes the glucose that is used in cellular respiration to make atp. the glucose is then turned back into carbon dioxide, which is used in photosynthesis. while water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.