Answer:
D
Explanation:
DNA use thymine and rna uses uracil but they use a,c,g together
It is necessary because Oxygen demands need to be reduced. This may require more aggressive support
including the use of continuous positive airway pressure (CPAP) or mechanical
ventilation. Newborns born to drug-addicted mothers exhibit hyperirritability,
exaggerated reflexes, and transient tachypnea.
It increases the chances of lions surviving a natural catastrophe.
hope this helps :)
Use this website, I remember having this question and I used this site
http://www.alaskakids.org/index.cfm/know-alaska/Alaska-Geography/Tundra