*Question*
Muscles that are exercised are bigger and stronger than muscles that are not exercised.  If a muscle is exercised, it will become bigger or smaller?
**Answer**
bigger

*Question*
Light-skinned people get sunburned more quickly than people with darker skin.  A person that is African American will get less sunburned or more sunburned than a white person at the beach?
**Answer**
less sunburned

*Question*
As humidity increases, the water potential gradient across the inside and outside the leaf become more equal, and so the rate of transpiration decreases.  When it becomes more humid outside people are more likely or less likely to sweat?
**Answer**
more likely

*Question*
The smaller its mass is, the greater its acceleration for a given amount of force.  What happens to a light car when it has the same power as a heavy car accelerates faster or accelerates slower?
**Answer**
accelerates faster