How are the autotrophic protists different from the heterotrophic protists?
a. the autotrophic protists can photosynthesize, while the heterotrophic protists cannot.
b. the heterotrophic protists can all move around, while the autotrophic protists are immobile.
c. the heterotrophic protists reproduce by spores, while the autotrophic protists form eggs.
d. the autotrophic protists eat by endocytosis, while the heterotrophic protists use pinocytosis.

The right option is; A. The autotrophic protists can photosynthesize, while the heterotrophic protists cannot.

Protists are eukaryotic, microscopic organisms that may be unicellular or multicellular. In terms of feeding, some protists are autotrophic while some are heterotrophic. The difference between them is that the autotrophic protists produce their own food through the process of photosynthesis, while the heterotrophic protists cannot photosynthesize but they obtain their food by ingesting other organisms or decaying organic matter.

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explanation:

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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."