Answer:
the last one, Underwater weighing
Answer:
<h3><em><u>1 years</u></em></h3>
Explanation:
In general, small dogs enjoy longer lives than do their larger counterparts. A recent analysis of veterinary records revealed that dogs under 20 pounds had an average lifespan of 11 years while those over 90 pounds typically lived for only 8 years. Medium and large dogs fell in the middle at around 11 years.
Hope this help!!!!!
Age, gender, heredity, and race.
Answer:cross-contamination
Explanation:
