Ionic (metals and non metals) covalent (non-metal and non-metal) metallic (metal and metal) and hydrogen (between hydrogen molecules)
The best answer is A.
In a lysogenic cycle, the viral DNA or RNA enters the cell and integrates into the host DNA as a new set of genes called prophage. The prophage is passive and non virulent and does not destroy the cell. However if the prophage undergoes any stress or mutation or is exposed to UV radiation, it may adopt the lytic cycle and become infective.
In a lysogenic infection, there are no viral symptoms and it occurs after the viral infection is over. But the viral DNA or RNA remains in the cell and may remain there permanently .
Answer:
Mg most commonly forms a 2+ ion. This is because Mg has two valence electrons and it would like to get rid of those two ions to obey the octet rule. Fluorine has seven valence electrons and usually forms the F – ion because it gains one electron to satisfy the octet rule.
If I remember correctly, I believe the answer is a) An increase in the use of buses and trains decreases the effects of acid precipitation.
The decrease of using buses and trains would decrease the effects of acid precipitation.
Every other option seemed right to me!
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Answer:
Answer is Earthquakes :)
Explanation:
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