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How do archaebacteria obtain food?

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Quick Answer

Archaebacteria obtain food by absorbing resources in the environment as precursors for various energy conversion processes. The type of resources that archaebacteria absorb depends on the type of archaebacteria. Each type of archaebacteria has a specific method for converting resources into energy, as well as residing in different habitats.

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Full Answer

Archaebacteria usually absorb and convert resources into energy, but some types can create their own food. Those that make their own food do not use photosynthesis like plants do, but instead they use other methods to convert sunlight to energy. Carbon dioxide, hydrogen, sulfur or ammonia are examples of resources that archaebacteria absorb to acquire food.

Archaebacteria are not actually bacteria, but belong a separate domain called Archaea. There are many different types of archaebacteria, but their characteristics vary. Archaebacteria are single-celled organisms that lack nuclei and organelles.

Archaebacteria are able to withstand extreme conditions, such as very high or low temperatures and extremely acidic or salty habitats. They can reside in environments like hydrothermal vents, sulfuric waters, arctic waters or acidic streams. These organisms possess protective molecules and enzymes in order to survive in extreme conditions, but they may also live in milder conditions, such as in the human body or the open ocean.

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