Answer:
a. enclosing their DNA in a nucleus.
Explanation:
Prokaryotes in general have no membrane bound organelles. The cells are enclosed in a plasma membrane though .
c. saturated, thats the one that helps animals store energy and insulation
This design makes it easier for cars to move up the hill because its moving more so it makes it easier to get up the hill
The answer is, 43 km/hr . Speed is,

So we will divide the given distance to the given time, so :