D because before you do a b and c you have to take the test
There once lived a single - celled ancestor that gave rise to two lines of evolution --- one leading to the living choanoflagellates and the other to animals .
The correct answer is growth of new neurons
We are able to create new neurons, even in adulthood. The discovery is relatively new, because it was thought that we were born with a certain “neuron bank” that was decreasing with time and that we were not able to increase. However, the latest findings in neuroscience have overturned that belief. Our brain is plastic: we can create different connections and even, in some areas, like the hippocampus, we can make new neurons be born.
In the first census, the population of the United States was enumerated to be 3,929,214. Congress assigned responsibility for the 1790<span> census to the marshals of United States judicial districts under an act which, with minor modifications and extensions, governed census taking through 1840.</span>