The correct answer is A !!
If two species have reproductive success then they share common descent as some traits that allow them to breed are present in both !!
The researcher could look for the presence of proteins, because viruses have a envelope (capsid) composed of proteins that involve their genetic material. The capsid may have a helical or icosahedral structure and is extremely regular. Viroids cannot synthesize any type of protein, so differentiation is possible.
Answer:
5. 1. 3. 2.4 I believe it is like that
Explanation:
Osmosis occurs through water channel proteins called aquaporins.
