Answer:
Explanation: Homeostasis in animal
Homeostasis is the way animals maintain a stable internal balance in their body. It allows animals to function in the changing external conditions surrounding their body. ... Osmoregulation is an example of homeostasis. It is way osmosis is controlled by salmon to maintain a water balance.
The construction is aqueducts
The discovery of Gold caused people to start rushing to California.
Early 1800's. The Erie Canal was built in 1817