Answer:
between 20,000 and 25,000
Gulls, crows and herons are all opportunists. They'll eat just about anything that they can get their beaks on. That includes fiddler crabs.
Oxygen enters the blood in the A. Bronchi.
The answer to your question is fish
D.
The farmer will choose what traits are most desirable. Basically, its like an arranged marriage. If you are the animal, and your father is the farmer, your father is picking who you marry. So the farmer just chooses who mates with who.
