a.on shores and coasts. i think would be the best awnser
Cells move because they need to transport oxygen and carbon dioxide.
<span><span>long ears that help them detect the predator
long ears to cool themselves
</span></span>
The actual answer (sorry for the late reply, but this is for the rest of the people coming afterwards) would actually be B) Switch primitive reptile with primitive insect. Insects came before any reptiles.
The right answer is D.
Gene therapy is a method of introducing nucleic acids (DNA or RNA) into the cells of an organism to correct an abnormality, such as a mutation, causing a pathology.
It is often a question of bringing a normal and functional gene (transgene) into a cell where the present gene is altered.
Another method can bring RNA capable of partially regulating or blocking the expression of an altered gene.