Our brain accomplished many things including perception and sensation at what level?

Sensation and perception are accomplished by our brain in the unconscious level. This level describes the mental state that a person presents when they develop it without a warning of its actions, meaning without realizing he is doing it, it doesn’t depend on his own voluntary to make it happen. This fits with sensation and perception because they are, respectively, the reaction of a receptor to stimulation while the other is the procedure of interpreting a stimulation.

the median of the data is 4.

step-by-step explanation:

the median means the middle number of a given number.

to decide which one is the median, arrange in ascending or descending order. but sometimes, you may find two(2) number in the middle, but it's easy, just add them together and divide by 2.

so,   determine the median of the data. 2, 3, 3, 4, 5, 7, 9

it is already arranged, count 3 times forward and 3 backward and the one left is your answer.

2,3,3,4,5,7,9

our answer is 4.

hope this !

the following men who did not in the unification of italy were.

a) giuseppe mazzini

c) alexander ll

the other two men were camilo cavour and giuseppe garibaldi they the unification of italy by yielding territories in the italian unification. in 1861 italy was declared a united-nation state under the sardinian king victor immanuel ll.