PLS HELP me with these questions!! 20 points

When comparing the digestive and urinary system, we can conclude that they both

Which field of study contributes ideas and concepts to biomechanics?

Zoom out so that you can see the whole state of california. select the ruler tool again, but change the type of measurement from line to path. create a path from san francisco to las vegas, to los angeles, to san diego. what is the total length of this path in kilometers and in meters?