Measure the distance from force to fulcrum and from load to fulcrum on your own arm and then calculate the force needed to hold in place a 25 pound load. Show your calculations.

they both go up but then go back down. they both end lower than they started. lastly, they both are competitive/the second on.

explanation:

the answer is true when observing or determining population size, a direct observation is use, in which each organism is counted in a population or in an area. one benefit of this measure is that you get the exact population count but it will take a long time to  determine  the  size  of a  population.

if you listed your answers right then i believe your answer is b.