Answer: Inorganic compounds <em>are </em>made of elements.
Explanation: Everything in the universe, whether living (organic) or not (inorganic), is made of elements.
the correct answer is C If I'm not mistaken
Nitrogen-fixing bacteria convert nitrogen gas from air into a form that plants can use to make proteins. Free-living nitrogen-fixing bacteria are also found in the soil. When they die the nitrogen they have fixed into their biomass is converted into ammonium .
Answer:
The correct answer is option C, that is, anaerobic chemoheterotroph.
Explanation:
Chemoautotrophs refer to the organisms, which can produce energy by oxidation of inorganic components found in the environment. They utilize inorganic components as the source of energy. They produce organic compounds by fixing carbon dioxide from the surrounding.
On the other hand, chemoheterotrophs consume and digest organic components from the surroundings. However, they use inorganic compounds as a source of energy. The intestinal bacterium attains its carbon sources by digesting the food components found in the intestine. Thus, it is most probably a chemoheterotroph as it can dissociate down the organic compounds found in the food.
The mentioned bacteria are anaerobic in nature, as it can survive easily in an extremely harsh environment of intestines, and are also resistant to high temperatures.
The answer is; smooth muscle
muscles are known to contract and relax. This action of the Arrector pili muscles (muscles attached to the hair follicles of the skin) either cause the hair to stand or lie on the skin. When they contract, the hair stands,and when the muscles relax, the hair lies on the skin. The muscles are served by the autonomic nervous system (hence involuntarily contract and relax).
