Which of the following pairs of protists and their ecological roles are correctly matched? a) apicomplexans parasites of animals b) euglenozoans-primarily mixotrophic c) dinoflagellates-parasites of plants d) entamoebas-free-living soil organisms

The types of protists which usually act as animal parasites are called Apicomplexans.

Option A

Explanation:

Contamination by parasitic protozoa of the phylum Apicomplexa makes causes infection to people as well as animals. horticultural creatures. Apicomplexan parasites incorporate Plasmodium speices the causative agents of of intestinal sickness; Toxoplasma gondii, a noteworthy pathogen in immunocompromised people; Eimeria speices whcih acts as pathogens of chicken and dairy cattle; Theileria species casues tick-borne parasites of cows in Africa; and Cryptosporidium, whcih acts as paristie for both animal as well as human.

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."