Answer: Option A) nucleus
Explanation:
Prokaryotic cells lack nuclear envelope, thus the nucleus is absent in Prokaryotic cells.
On the other hand, eukaryotic cells possess membrane bound nucleus and nuclear envelope.
Thus, nucleus is the answer
Polarity affects hydrogen bonding because hydrogen bonding occurs due to a bond being polar. One side of the bond will be slightly more negative because it's pulling more electrons towards itself and the other side of the bond will be more positive. Therefore the partially positive bond of one molecule will be attracted to the partially negative bond of another molecule. This is called an intermolecular force and hydrogen bonds are the strongest intermolecular force.
Probably occurred with the presence of a catalyst (enzyme)
Numerous kids have a cyclic example in which heart rate is quicker on motivation and abatements on termination. This is a sinus arrhythmia and is a typical finding in your kids. In the event that the patient isn't griping of any agony or shortness of breath, at that point, the in all probability treatment is not do anything. The specialist can propose a resound if there are side effects.
I believe the answer is C. because producers aren't needed much in the ocean <span />
