The first one because the scale is straight, let me know if you get it right
D. it is cool because when u exercise u swet. so it is better in the cold.
I'm pretty sure they are reffering to Alzheimers.
<span>Damaged dna is excised by endonuclease.
Three excision repair pathways exist to repair single stranded DNA damage: Nucleotide excision repair (NER), base excision repair (BER), and DNA mismatch repair (MMR).</span>