Animal cells contain dna enclosed in the nucleus
Answer: because its a chemical
Explanation: i dont know for sure but here is my theroy the animls eat it and it goes through out the ecosystem i dont want to get into to much detail but it can spread bc its a chemical it has a atomic number of 6
Answer: It would unbalance the ecosystem.
Due to the fact that if some species die off, the other species that rely on those species for food or protection would loose that food/ protection which may lead to their extinction and their extinction would lead to another extinction and so on.
Answer:
He could create a schedule, block the extra things they do that isn't necessary, or even take a few breaks. When you take a break you relax your mind, and when you do that you stress less so you can be more productive.
Hope this helps and have a great day!