B la patogenicidad de un virus
Option D is correct.
A synapse is the opening between neurons that neurotransmitters pass through.
From the med. terranian basin to the mountains of central asia.
Answer:
zinc oxide is a pure substance
If the element has not become an ion yet, then there is 73 electrons.
Number of protons = number of electrons**
**only when the element has not form an anion or cation.
