Answer:
I believe you can prove a theory more than a hypothesis. A law is definite.
Mammal I’m not sure sorryyyy
Answer:
Inherited traits.
Explanation:
Inherited traits are ones passed down from parent to offspring!
Its is to remove liquid waste from the blood in the form of urine, and keep a stable balance of salts and other substances in the blood and produce erythropoietin, hormone that is the formation of ref blood cells. The kidney remove ursa from the blood through this filtering units called nephrons