Overexposure of animals to X-rays is dangerous because X-rays are known to damage DNA. A possible result of X-ray damage is animal cells with

condenser is used to focus in the light microscope.

bal is blood alcohol level. bac will normally be higher in a person with more body fat. so the answer to your question would be, as body fat decreases, the increasing rate of bal decreases.  

garbage disposal because lysosomes dispose of old cell parts like garbage disposals dispose of old food.