Hi i might be late but it’s B i hope i helped!
It means they may or may not have the same function but have similar structure depicting that the organisms may have had a common ancestor.
Autotrophs make their own food while heterotrophs do not; because of this, autotrophs may survive in certain situations in which heterotrophs would not.
Hope this helps.
B) Yes, all organisms use DNA for the production of proteins.
Protozoa are unicellular eukaryotes. As in all eukaryotes, the nucleus is enclosed in a membrane. ... The organelles of protozoa have functions similar to the organs of higher animals. The plasma membrane enclosing the cytoplasm also covers the projecting locomotory structures such as pseudopodia, cilia, and flagella
