Because it is needed.
Yes, a mouse (female or male) will get lonely if kept alone in a cage. Mice are very social animals and need the company of other mice to be happy.
You need white and colored candles, a timer, and a lighter.
Yes, Mice need water.
If you have already caught 2 mice, you need to catch more mice.
An independent and a dependent variable. A hypothesis. And lab coat, a white one.
To provide an accurate answer, I would need more context regarding the specific investigation you're referring to, as the number of mice can vary significantly depending on the study or experiment. If you can provide additional details about the investigation, I would be happy to help!
The mice know that yahoo has the cheese the mice need.
It is not good for mice to be alone. I'm assuming these mice were male. It is normal for males to fight over territory. Think back to the cages they were in. Did it have enough solitary places for each one to claim a territory? If not, then that is what started the bullying. Male mice must have territory. If there is not enough territory for all they will bully one or the other until he gives up his spot so they can have it. Just make sure the cages is big enough for each to have his own little "den". And, of course, it goes without saying that you need to keep the female mice out of the community unless you want lots and lots and LOTS of little mice running around. Mice propigate very quickly.
Yes, mice can have strokes but there are other reasons for paralysis. You need to take your mouse to a vet.
It depends. If it's male then it might lower the amount of wild mice but if they're female it will more than likely higher the amount due to the fact mice need to mate. But I'm not 100% sure and only saying what I know from experience with a different type of rodent as a pet (Pet Rats.) I would say that it probably won't do much when it comes to removing or lowing the amount of wild mice.
I don't know. You might need to get some more mice. That's for sure!
mice do't need baths, so there's no answer to this question