Winogradsky and beijerinck discovered the lithotrophic bacteria. which is false concerning this group of bacteria?
a. they are a type of heterotrophic bacteria.
b. they typically use carbon dioxide as a carbon source
c. they can utilize compounds such as hydrogen (h2) or ammonia (nh3) as sources of energy.
d. they are only found among the prokaryotes. e. they have an important role in the functioning of ecosystems.

They are a type of heterotrophic bacteria

Explanation:

The bacteria that is found in lithosphere will be auto as they are typically using carbon dioxide as a soul source.

They are found among the prokaryotes. They are a group of chemoautrophs, bacteria that make their food by the help of the organic and inorganic compounds such as carbon, ammonia, hydrogen, carbon.

hence, the correct answer is option A

the answer that best describes the relative refractory period in the neuron is the resting membrane potential is restored, but concentrations of sodium and potassium are not restored to their original state.

the refractory period is the time during which another stimulus given to the neuron will not lead to a second potential. thus, because na+ channels are inactivated during this time, additional depolarizing stimuli do not lead to new action potentials.  

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what is the statement?