<span>Poodle, Boxer, English Bulldog, Yorkshire Terrier, Golden Retriever, Beagle, German Shepherd, and <span>Labrador Retrievers are the most popular breeds of dogs, but there is not a "Most popular breed of dog" but many</span></span>
It would be the last one.
A frog's lungs don't work that well, but since it's skin is so thin, oxygen and carbon dioxide can pass trough it.
Answer:
I think it's a) 0.3 km/min
A signal to reabsorb more water and salt. Have a good day =D
