Which of the following best describes energy transformations in ecosystems? a. most energy in a lower trophic level is passed to higher trophic levels. b. heat is not a significant waste product as energy passes between trophic levels. c. most of the energy collected by an organism is not passed on to other organisms. d. tertiary consumers collect the most energy in an ecosystem.

C. best describes energy formations in ecosystems.

The correct answer for above statement is:

A series of organisms, each of which works as a beginning of food or energy for the next. It defines how chemical energy and nutrients move from one person to different within the trophic levels in an ecosystem by the related pathways essentially by photosynthesis, feeding, and decomposition

4.) metal

"-the movement of carbon from the nonliving environment into living things and back to the environment

-carbon is the essential component of proteins, fats, and carbohydrates (which make up all organisms)

-carbon exists in air, water, and living organisms

-producers convert carbon dioxide in the atmosphere into carbohydrates during photosynthesis

-bacteria in the atmosphere cycles through the system in filtration units

-in cellular respiration, carbon is released back into the atmosphere as carbon dioxide

-some carbon is stored in limestone (forming one of the largest "carbon sinks" on earth)

-largest carbon reservoir on earth= limestone

-carbon stored in the bodies of organisms as fat, oils, or other molecules may be released into the soil or air when the organism dies

-this may form deposits of coal, oil, or natural gas (fossil fuels, which increased the atmospheric carbon dioxide)

-fossil fuels store carbon left over from bodies of organisms that died millions of years ago

-they are located in the surface of earth, deep within the earth and beneath the ocean floor."