The phenomenon of salmon swimming upstream to spawn would be an example of motives drives needs

Salmon are conceived in fresh water and most experience their grown-up lives in the sea. At that point they make an unimaginable upstream adventure to spawn at the similar spots that they were incubated. Just Kokanee salmon don't make this trip; they experience their entire lives in a freshwater stream or lake.

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 !