(Q).
When the heart expels more blood with each stroke, the heart has to beat less often in order to maintain the same volume of blood flow.  Having read the above passage, choose the right answer to the following question (choices are greater or lesser ):   Jan had a very low heart rate, but was perfectly healthy, indicating that her heart expels blood in amounts that are greater or lesser?
(A).
lesser


(Q).
The more dense the medium, the slower the light moves.  Having read the above passage, choose the right answer to the following question (choices are Faster or Slower ):   John was looking at the lights passing through the object. He noticed that the less dense the medium, the light would move Faster or Slower?
(A).
Faster


(Q).
The pupil automatically gets bigger or smaller to let more or less light in as needed.  Having read the above passage, choose the right answer to the following question (choices are more or less ):   When it is night time the pupils in our eyes are more or less open than normal?
(A).
more