White-collar workers were introduced into the realm of modern social science at the end of the nineteenth century. The starting point was twofold: (1) the notion of a growing number of occupations, employments, and functions that shared many traits of the working class while at the same time differing in important aspects from manual workers as well as from the higher social strata; and (2) the exceptional rapid growth of these categories in the decades around the turn of the century, which even outdid that of the manual workers.
Answer:
<h2>b) 640,000</h2>
Explanation:
Given:
Initial population = 10,000
Doubling time= 20 minutes
total culture allowed time = 2 hours
after 2 hours final bacterial population is 640,000
calculation:
10,000 doubles after 20 minutes = 20,000 and so on... final population after 2 hours = 640,000.
According to Newton's second law: the acceleration of an object is inversely proportional to it's mass, so if you decrease it's mass while keeping the net force the same, the acceleration will increase.
Osmosis is the net movement of water down the concentration gradient, whereas active transport is the movement of substances against the concentration gradient. • Osmosis does not require energy, whereas active transport does.
