The answer to this question is estuaries or mangrove swamps, which are found in estuary environments. Estuaries are the transition between fresh water rivers and the ocean, and the salinity of estuaries change dramatically depending on the relative dominance between the fresh water and marine environments. These are euryhaline species that can tolerate a wide range of salinities, and include mangrove swamp and certain fishes.
Retroviruses store their genetic information in molecules of ribonucleic acid (RNA). However, unlike other RNA viruses, retroviruses use RNA as a <span>template </span>for forming deoxyribonucleic acid. <span>Viral genetic replication, especially in the case of retroviruses, have few, if any, error-checking mechanisms, which results in a high rate of mutation.</span>
The best and most correct answer among the choices provided by your question is the first choice or letter A.
Metamorphic rocks <span>found at a convergent boundary and a divergent boundary will help form the both the igneous and the sedimentary rocks.</span>
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Then the mice would not be infected as the DNA is destroyed by the enzyme ....so S type have no use and can't transfer it's DNA ....so mice survive !
