It is either carcinogens or viruses (I think the first) I hope this helps!
It may result to endangering that animal. Hope you enjoy your awnser!
Pardon? I don’t understand the question
Maybe, not sure, may need to check yahoo answers for this one
Answer:
Scientists use creativity to determine which smaller questions are likely to yield results, imagine possible answers to their questions, and devise ways to test those answers.
Explanation: