Answer:
D. Discovered chemolithotrophs in natural enviroments.
Explanation:
Sergei Winogradsky was a russian microbiologist. He observed in his research with genus of bacteria <em>Beggiatoa, </em>they were able to oxidize hydrogen sulfide as an energy source. Being the first example known of lithotrophs (organisms that use inorganic substrate in order to obtain energy).
Series of changes in the development of an organism.
Answer:
The answer is between a or b
but I strongly suggest the option a.
Evolution is the answer
The correct answer is ( B )
The answer for that is cell body. It goes in the blank.