Answer : The correct answer is -
D.Protista and Eubacteria.
Autotrophs are the organisms that can synthesise their own food using substances available in their surroundings with the help of either chemical energy (chemosynthesis) or light energy (photosynthesis).
Heterotrophs on the other hand, can not synthesise their own food and depend on either plants or animals.
Out of the given options, Protista and Eubacteria conatin autotrophs or heterotrophs.
Example- Protozoa (animal-like protists) are heterotrophs that ingest or absorb their food and helps.
Algae, which is a protist and obtains nutrition through photosythesis.
Slime moulds, which are fungus-like protists and are heterotrophic.
Cyanobacteria (also called blue green alage) is a photosynthetic bacteria (belongs to Eubacteria).
<span>Photosynthesis is important to living organisms because it is the foundation of most food chains. Photosynthesis is the process in which plants use the energy of Sunlight to convert carbon dioxide and water into sugar and oxygen. In food chains, plants are producers because they produce their own food so they are the foundation of most food chains. Since plants are the biggest group of organisms that perform photosynthesis, photosynthesis is important to living organisms because it is the foundation of most food chains.</span>
You didn't put any answers, but probably environmental groups.
Answer: Fermentation must create a net gain of ATP.
Explanation: Fermentation is a process in which organisms such as yeast, bacteria convert sugar into an alcohol or an acid. It is an anaerobic process because it does not require oxygen. The fermentation process is completed in the cytoplasm with a net gain of 2ATP during the glycolysis. Although it is a common pathway it is not the only method used by organisms produce ATP anaerobically.