What is the main difference between logistic and exponential growth curves? a. logistic growth curves never increase exponentially. b. logistic growth curves stabilize when carrying capacity is reached. c. logistic growth curves decrease before they increase. d. logistic growth curves are identical to exponential growth curves.

b.  Logistic growth curves stabilize when carrying capacity is reached.

Explanation:

A logistic growth curve is the S shaped curved it depicts the logistic growth in the population of a species. The logistic growth refers to the per capita growth of the population of the species when the population size approaches towards the maximum the carrying capacity of the resources of the environment get limited. This can be represented by the S shaped curve in which the population increases gradually at first, more rapidly in the middle and then population growth at the end is limited this is shown in the leveling off curve.

In the exponential growth the population of a species increases rapidly due to abundance of resources. It is not limited by the carrying capacity of the ecosystem. It can be represented by a J shaped curve.

On the basis of the above description, b.  Logistic growth curves stabilize when carrying capacity is reached. is the correct option.

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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."