Answer:
No
2. Yes
Explanation:
This is because DNA undergo transcription to produce RNA and RNA undergo translation to produce protein. Translation is the process where mRNA molecule is used as a template to produce protein.
RNA undergo mutation more than DNA and this is because the enzymes found in RNA viruses and participate in copying viral genomes is why it occur so. These enzymes does not have the abilities to recognize DNA damage that enzymes in most organisms have.
TRANSFORMATION IS THE ONLY THING I CAN THINK OF

The major reason for bird species decline is loss of habitat, especially grasslands and forests. All have experienced declines in some areas since the 1960s and '70s, and further declines are anticipated, due to habitat loss and deforestation, and climate change

I believe it is lungs. Gills are for underwater animals. A heart/bones has nothing to do with gas exchange. Hope this helped
I believe the answer is ferns, they were used as folk medicines for hundreds of years and were commonly used on bee stings, burns, fevers, and dandruff.