Answer:
Energy decreases as it moves up trophic levels because energy is lost as metabolic heat when the organisms from one trophic level are consumed by organisms from the next level. ... A food chain can usually sustain no more than six energy transfers before all the energy is used up.
Explanation:
The boundary separates them<span />
Answer:
<em>Which arrow or arrows represent a release of carbon dioxide? What process is occurring at the arrow(s) you selected?</em>
- From factory emissions to carbon dioxide in atmosphere (<u>C</u>)
- The process occuring can be called as <em>Combustion</em>. In this process, organic matter is burned in the presence of oxygen (oxidizer). It releases energy and carbon dioxide because carbon in organic matter is oxidized to form CO2.
<em>Which arrow or arrows indicate a process that cycles carbon from living or nonliving organisms? Describe the process or processes you selected.</em>
- from dead organisms to fossils and fossil fuels (E)
- The process explained in the question can be stated as <em>Fossilisation</em>. In this process, dead remains of plants and animals are transformed to fossils under pressure. The organic matter is preserved according to the shape of organism.
<em>Which arrow or arrows represent reactions that demonstrate conservation of mass and energy? Explain your answer.</em>
- from factory emissions to carbon dioxide in atmosphere (C) & from carbon dioxide in atmosphere to photosynthesis (B)
- Two reactions represent the converstion of mass and energy. The burning of fossil fuel (mass) releases energy and carbon dioxide, which is again used by plants to store energy in the process of photosynthesis. This is shown in C and B part of the figure.
C. Enzymes increase the rate of the chemical reactions carried out during metabolism.
