Based on the choices given, I believe that "represent" is the correct answer.
Studying is when I fall asleep is an example of =>2.parallel structure.
<span>Why? "Studying is..." can be completed in one way,let us call it (a 1,a2,...) </span>
<span>(a1) ...the elementary precondition for getting any kind of a graduation." </span>
<span>(a2) not just the action of opening a book and staring at the lines,it takes much more. </span>
<span>"When I fall asleep" can be completed is different ways,let us call them (b1,2...) </span>
<span>(b1) ...is an example of a very special situation which I am are in, </span>
<span>seen under the aspect of physiological processes in my body. </span>
<span>(b2) ...is an example of an uncompleted sentence which causes irritation of </span>
<span>your dialogue partner.</span>
Turtles and tortoises are animals that can share many qualities, as well as different ones. Over time, turtles and tortoises have developed to withstand the environment they thrive in. Both turtles and tortoises have firm shells, lay their eggs in soil or sand, and neither have actually teeth (they use their beaks to “bite”). However, these animals have many differences as well; while tortoises live on land, have longer necks, and have round and bumpy shells, turtles habitats are in water, their necks are shorter, and their shells are flat and smooth. Also, turtles have webbed feet to help them navigate better in the water, while tortoises have bent and sturdy legs.
Hope this helps
The answer to the question is TRUE! Hope this helps!