Carbon dioxide.. Animals use energy, breathe oxygen, and drink water..
DNA contains sugar deoxyribose, while RNA contains sugar ribose,
DNA is a double-stranded molecule, while RNA is a single-stranded molecule.
Orographic lift occurs when an air mass is forced from a low elevation to a higher elevation as it moves over rising terrain. As the air mass gains altitude it quickly cools down adiabatically, which can raise the relative humidity to 100% and create clouds and, under the right conditions, precipitation
An electronic cardiac monitor is the preferred method for assessing heart rate during chest compressions. While a person is performing chest compressions on a patient, he or she is hooked up to the electronic cardiac monitor so that the doctor can see exactly how fast the patient's heart is pumping blood. Cardiac monitoring is the best method do assess this.
It totally depends upon whether modification is being done in somatic cells or germ cells. Somatic cells modification is ethically accepted because it doesn't pass from one generation to another generation but germline modification is considered as unethical because the modification will pass on to the next generation leading to the persistence of modification in future generations. The problem with genetic modifications is that the impacts of modifications are unpredictable, rather than being fruitful they may lead to lethal mutations so if it occurs in just somatic cells, then even if it is lethal/harmful, it will be confined to only that individual but if a lethal mutation occurs in germ cells then it will pass on to the subsequent generations and it will persist in all future generations.