I believe the last option is the correct one for the illustration of the single celled organism provides and the environment that it is found living in.
Living things get energy/food from the sun through a process called Photosynthesis
it's the process by which living organisms manufacture food in the present of sunlight, oxygen and some other vital nutrients.that is Carbon dioxide etc
The concave disc shape of red blood cells Maximizes the surface area of the cell , allowing for rapid movement of oxygen or carbon dioxide to and form the hemoglobin within the cell.
Geothermal energy = Eco-friendly
Cut down trees = not eco-friendly
Biomass instead of coal = eco-friendly
Turn lights on during the day = not eco-friendly
Carpool = eco-friendly
Compost = eco-friendly
