Well that depends on what they are being tested on and what animals are you speaking of.
depending on what is being tested. some items cause serious injury, some cause death
Animals die when they are being tested on because they are having foreign substances put into their bodies. Animals that are tested on also have chemicals put into them. An animals body is not made to handle these chemical and foreign substances.
Yes.
The dependent variable varies due to effects of the factor being tested in a controlled experiment.
Billions.
CX717 is a drug that is said to reverse the effects of sleep deprivation. It has been tested on lab animals. Drugs with methamphetamines are also being said to help reverse this condition.
2,500,000
the same as you would if you were being tortured like they are every day
As opposed to not being tested on animals? ALL makeup is ultimately tested on humans to be sure humans like wearing it, and that it stays on them long enough to make applying it worthwhile.
the result
An oxygen meter measures the percentage of oxygen in the air being tested.
because animals have feelings as much as humans so why test it on animals when we can test it on humans.