True, the lungs act as a sieve to trap blood clots.
Answer:
OK 1. I'd say do some research like search it up then ask others and you should've ask whoever u bout them from those questions. but for the size I would say medium(they do need space so yeah) and no they not ok with dogs in the house lol don't ask why if I answer you will be scared. but again no wrong or right answer just saying!!!!!!!!!
