because they love to measure things
By testing them.
for testing,if you mean experimenting I am sure its illegal
preditions x)
Making predictions & then testing them.
Making predictions & then testing them.
Making predictions & then testing them.
Yes.
The conditions of what is called his control group.
a parasitologist or microbiologist. a medical technologist will do the actual testing.
Yes because if scientists did not do it on animals there would not be any cures.
Repeat testing
Yes. Recent DNA testing has proved that interbreeding did occur.