The organism is the highest level of hiearchy
In a study, the independent variable is the thing that you change to see how the change produces different results. In this study, the independent variable would be the use of nicotine.
Answer:
your spit is one of them too
Explanation:
they're not really but considering your fresh pee is 10x less dirty than a spit I'm considering.
Answer:
A food handler serves meat that turns out to have parasites.
Explanation:
Being that the meat has parasites within it, the consumer would very likely get infected with the parasites themselves after eating it, making it biological contamination as biological contamination is described as the presence in the environment of living organisms or agents derived by viruses, bacteria, fungi, and mammal and bird antigens that can cause many health effects.
